Complete the Words — an original ten-gap passage · Complete the Words — um texto original de dez espaços
Restore a rain-garden explanation one word at a time
- Use the original paragraph’s meaning as well as its visible letters. Complete the gaps before using the later grammar review; the review explains the answers.
This is site-created practice for the 2026 TOEFL iBT Complete the Words · Complete the Words (Completar Palavras) task, not an ETS question. The original paragraph below is about 90 words. Its first sentence is intact; in the next stretch, the latter half of every second word is missing. There are ten gaps. Type only the missing letters in each exercise, not the whole word.
Rain gardens are shallow planted areas that collect water flowing off roofs and paths during a storm. Plants abs___ (1) some wa___ (2) while ro___ (3) create nar___ (4) spaces th__ (5) help ra__ (6) move thr____ (7) the so__ (8) more slo___ (9) after sto___ (10). Researchers can compare how much water leaves two similar paths, one beside a rain garden and one without it. Such a comparison must account for the size of each paved area and the intensity of each storm. A single wet afternoon does not prove that the garden will perform equally well in every season.
The passage is a small explanation of how a rain garden can slow runoff and how researchers might compare two places. The whole topic is in the first sentence; no specialist knowledge is needed.
The missing letters did not leave a forwarding address, but they left grammar clues.
Read around a gap before you type
Try an unscored miniature example: The roots ret___ some water. The visible ret narrows the possibilities, roots · raízes is the subject, and some water is the object. Retain makes sense, so the missing letters are ain. Notice that the answer is only the missing part.
In the longer passage, scan for a subject and a verb. A prefix such as ro may suggest several words on its own. The phrase after it tells you what those things do, and the preceding clause tells you what is being contrasted or added. Read both sides of each gap.
Let the paragraph settle close choices
If a completion seems grammatically possible but makes the explanation strange, keep reading. The later sentences repeat important ideas: water leaves paths, paved area and storm intensity affect comparisons, and one afternoon is weak evidence for all seasons. These ideas help you check whether your reconstructed sentence belongs in the paragraph.
Do not change the printed prefix. Do not write an entire word where only letters are requested. After each entry, mentally join the letters and read the result as a complete sentence.
Fill the ten gaps
Use the ten checks below in passage order. They test the letters you add; for example, if a word appeared as pla___, you would type only its missing ending. The explanations appear after each check so you can compare your reasoning with the evidence in the passage.
The printed prefix is part of the answer. Typing the whole word in a missing-letters box changes the task and will not match the key.
Gap 1, abs___: type only the missing letters. · Gap 1, abs___: digite apenas as letras faltantes.
Plants absorb some water. The prefix abs plus orb forms absorb, a verb that fits plants and water. · Plants absorb some water. O prefixo abs somado a orb forma absorb, um verbo que cabe a plantas e água.
Gap 2, wa___: type only the missing letters. · Gap 2, wa___: digite apenas as letras faltantes.
The first sentence names water flowing off surfaces; some water is then absorbed. Wa plus ter restores water. · A primeira frase nomeia fluindo água sobre superfícies; alguma água é absorvida. Wa somado a ter restaura water.
Gap 3, ro___: type only the missing letters. · Gap 3, ro___: digite apenas as letras faltantes.
Roots are the plant parts that create spaces in the next clause. Ro plus ots restores the plural subject roots. · Roots são as partes da planta que criam espaços na oração seguinte. Ro somado a ots restaura o sujeito plural roots.
Gap 4, nar___: type only the missing letters. · Gap 4, nar___: digite apenas as letras faltantes.
Narrow describes the spaces made by roots. Nar plus row produces an adjective before spaces. · Narrow descreve os espaços feitos pelas raízes. Nar somado a row produz um adjetivo antes de spaces.
Gap 5, th__: type only the missing letters. · Gap 5, th__: digite apenas as letras faltantes.
The clause identifies spaces that help rain move. Th plus at forms the relative word that. · A oração identifica espaços que ajudam a chuva a se mover. Th plus at forma a palavra relativa that.
Gap 6, ra__: type only the missing letters. · Gap 6, ra__: digite apenas as letras faltantes.
The first sentence mentions a storm and water; the spaces help rain move. Ra plus in forms rain. · A primeira frase menciona uma tempestade e água; os espaços ajudam a chuva a se mover. Ra plus in forma rain.
Gap 7, thr____: type only the missing letters. · Gap 7, thr____: digite apenas as letras faltantes.
Rain moves through the soil, not merely towards it. Thr plus ough restores the preposition through. · A chuva se move através do solo, não apenas em direção a ele. Thr plus ough restaura a preposição through.
Gap 8, so__: type only the missing letters. · Gap 8, so__: digite apenas as letras faltantes.
The rain moves through the soil beneath the planted area. So plus il forms soil. · A chuva se move através do solo sob a área plantada. So plus il forma soil.
Gap 9, slo___: type only the missing letters. · Gap 9, slo___: digite apenas as letras faltantes.
More slowly tells how rain moves; slowly is an adverb modifying move. Slo plus wly restores it. · More slowly diz como a chuva se move; slowly é um advérbio que modifica move. Slo plus wly restaura it.
Gap 10, sto___: type only the missing letters. · Gap 10, sto___: digite apenas as letras faltantes.
The sentence says after storms. The passage also mentions a storm at the start and each storm later, confirming the topic. Sto plus rms forms storms. · A frase diz depois de tempestades. O texto também menciona uma tempestade no início e cada tempestade mais tarde, confirmando o tema. Sto plus rms forma storms.
Review a wrong gap as a sentence problem
For every missed gap, write down the printed prefix, your completed word, and the phrase on both sides. Ask which clue you overlooked: letters, grammar or · ou meaning. This is more useful than memorising ten endings from one paragraph.
The passage is an original approximation of the published task, not an adaptive score estimate. A single ten-gap text cannot predict a TOEFL Reading score.
Task mechanics checked on 23 September 2026: ETS updated TOEFL iBT overview, Reading sample tasks.
Use grammar to check the rain-garden explanation
- The passage says plants absorb water while roots create narrow spaces. Plants and roots are plural subjects; the present-tense verbs do not add a singular -s.
- “More slowly” explains how water moves through the soil. An adjective such as slow cannot take that adverb’s job in this sentence. Identify the role before deciding the missing letters.
- A correct gap does not prove you understood the experiment. The comparison also has to account for paved area and storm intensity.
- Reconstruct each word, read the entire sentence and identify why that form fits.
- Try the transfer checks below before returning to the explanation. These are original self-checks, with no official score conversion.
Match the three distinctions from the worked case.
“More slowly” explains how water moves through the soil. An adjective such as slow cannot take that adverb’s job in this sentence. Identify the role before deciding the missing letters.
In the rain-garden text, what does “more slowly” describe?
The passage says plants absorb water while roots create narrow spaces. Plants and roots are plural subjects; the present-tense verbs do not add a singular -s. “More slowly” explains how water moves through the soil. An adjective such as slow cannot take that adverb’s job in this sentence. Identify the role before deciding the missing letters.
Complete the worked-case label: plants absorb → ____. Use the phrase in the diagram.
Reconstruct each word, read the entire sentence and identify why that form fits.