QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: Stephen tried to be intelligent.

QUES: unacceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: John carried to the door.

QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: Are you prepared for school tomorrow?

QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS:
I could have been flying helicopters by now.