Multiple choice

Directions: This question presents a sentence, all or part of which is underlined. Beneath the sentence you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others.

The flower of Venus Flytrap shuts when at least two trigger hair on its surface are touched within 20 seconds of each other, after capturing its prey, allows it to escape if it is too small.

  1. shuts when at least two trigger hair on its surface are touched within 20 seconds of each other,

  2. shuts when at least two trigger hair on its surface are touched within 20 seconds of each other, but

  3. which shuts when at least two trigger hair on its surface are touched within 20 seconds of each other, but

  4. which shuts when at least two trigger hair on its surface are touched within 20 seconds of each other,

  5. shutting when at least two trigger hair on its surface are touched within 20 seconds of each other,
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Correct. The option introduces a word necessary to imply the contrast in the Venus Flytrap's action of catching a prey but releasing it if it is too small.

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