1.Unless you had told me earlier................she was,i could have understood hẻ.
A.who B.which C.whom D.whoever
2.He often tells a lie.Don't ask him...................information you need
A.of B.about C.with D.for
3."What does Homer need a tutor for?" "Because it's important.........................on his exam next month'
a.that he do well b.he well does
c.for him do well d. that he will do well
4.After bomb explosion, the center of the city was..................a state of confusion.
a.on b.in c. upon d.of