The refuse collectors often work at night or even at midnight because they take_______ for keeping the city clean and beautiful. (refuse collector: dustman)
A.possibility
B.ability
C.responsibility
D.probability

John: “Wearing this dress makes you prettier, Jennifer!” --Jennifer: “_____________________”
A.It’s all right.
B.Don’t mention it.
C.Thank you.
D.Congratulations!

If only you ______how hard I've tried to please you.
A.know
B.knew
C.will know
D.would know

The house was in such a mess - it looked as though a bomb ______on it.

A.dropped
B.has dropped
C.was dropped
D.had dropped

If I had gone to the party last night, I ______tired now.
A.am
B.were
C.would be
D.would have been

_____been for your support, I could not have done it.
A.Had I not
B.Hadn't I
C.I had not
D.I not had

Jack would have studied medicine if he ______to a medical school.

A.had admitted
B.could be able to enter
C.were admitted
D.had been admitted

He never goes home before he will finish his work.
A.never
B.goes home
C.will finish
D.work

Nguyen Du, that wrote "Kieu Story", was a great Vietnamese poet.
A.that
B.wrote
C.was
D.poet

If I had enough money, I would have traveled around the world
A.enough
B.would have traveled
C.the
D.world