Multiple choice

Directions: The underlined part the following sentence may have an error of grammar or syntax. The part has been rewritten in options (B) to (E) in four different ways - (A) being an exact restatement of the underlined part. Pick up the option (B) or (C) or (D) or (E) that corrects the error in the underlined part, if any. If there is no error, mark (A).

To help preserve ancient Egyptian monuments threatened by high water tables, a Swedish engineering firm has proposed installing pumps, perhaps solar powered, to lower the underground water level and dig trenches around the bases of the stone walls.

  1. to lower the underground water level and dig trenches

  2. to lower the underground water level and to dig trenches

  3. to lower the underground water level and digging trenches

  4. that lower the underground water level and that trenches be dug

  5. that lower the underground water level and trench digging
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

(C) 'To help' should be parallel to 'to lower'. Hence (D) and (E) are eliminated. Further, 'installing pumps' is parallel to 'digging trenches'. Hence (C) is the answer.

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