37.-Shall Brown come and play computer games?
-No, ________ he has finished his homework.
A. when B. if
C. unless D. once
36.He got excited at the news, ________ I was calm.
A. when B. while
C. because D. after
35.You should make it a rule to leave things ________ you can find them again.
A. when B. where
C. then D. there
34.________ he is, he will be thinking of you.
A. Wherever B. Where
C. Now that D. As soon as
33.Why do you want to find a new job ________ you’ve got such a good one already?
A. that B. where
C. which D. when
32.No matter ________ hard it may be, I’ll carry it out.
A. what B. whatever
C. how D. however
31.I don’t care whether he stays ________ goes.
A. nor B. then
C. or D. otherwise
30.She is willing to help you, ________ busy she is.
A. what B. how
C. however D. whatever
29.________ comes to the party will receive a gift.
A. Which B. Who
C. Which one D. Whoever
28.________ he made an important speech at the meeting was true.
A. That B. Why
C. What D. How