QUES: acceptable
ANS: After the executioner left, Poseidon wept.

QUES: acceptable
ANS: I wonder if she will use paints.

QUES: unacceptable
ANS: the bottle drained the liquid free.

QUES: acceptable
ANS:
My sister arrived at a time when no buses were running, and my brother arrived at a time when no buses were running too.