QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: It is after class that John wants to look at your notes.

QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: John received a book.

QUES: unacceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: I believe that the problem is not easy to be obvious.

QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS:
The mother of the boy and the girl is arriving soon.