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.

A series of meetings, to evolve consensus on CTBT, were organized by the government and various organizations.

  1. to evolve consensus on CTBT, were organized

  2. to evolve consensus about CTBT, were organized

  3. for evolving consensus about CTBT, were organized

  4. to evolve consensus on CTBT, was organized

  5. for evolving consensus for CTBT, was organized

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Explanation for (1): The sentence has error of subject-verb agreement. 'A series' is singular and should be followed by singular verb 'was'.

Explanation for (2): This option does not rectify the error of subject-verb agreement and introduces another error by replacing 'on' by 'about'.

Explanation for (3): This option does not rectify the error of subject-verb agreement and introduces other errors by replacing 'on' by 'about' and 'to evolve' by 'evolving'.
Justification for (4): The sentence has error of subject-verb agreement. 'A series' is singular and should be followed by singular verb 'was'. This option corrects the error. Explanation for (5): This option rectifies the error of subject-verb agreement but introduces other errors by replacing 'to evolve' by 'evolving' and 'on' by 'for'.