QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: That Bill tried to discover which drawer Alice put the money in made us realize that we should have left him in Seoul.

QUES: unacceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: Any student in Mary's class happened to vote.

QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: Peter will decide which book we should review.

QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS:
John is prouder of having gone than I expected you to believe he would be of not having fallen asleep.