QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: Every vampire slept.

QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: What the baby did was chew the biscuit.

QUES: unacceptable (OPTIONS:
- unacceptable
- acceptable)
ANS: John knows whose book Mary bought and Tom talked.

QUES: acceptable (OPTIONS:
- unacceptable
- acceptable)
ANS:
That Chris knew the answer occurred to Pat.