3. Before you ask someone for help, find out ________ he is the right person for your problem.
A. that
B. whether
C. since
D. unless
A. that
B. whether
C. since
D. unless
答案
B
4. It’s a serious problem. We can’t decide ________ Mr. Harris comes back.
A. while
B. since
C. until
D. if
A. while
B. since
C. until
D. if
答案
C
5. —How was your weekend, Danny?
—I had fun, ________ I forgot my homework.
A. or
B. but
C. because
D. until
—I had fun, ________ I forgot my homework.
A. or
B. but
C. because
D. until
答案
B
6. —Where is the comic book?
—I brought it to you ________ you were in the reading room yesterday.
A. when
B. if
C. because
D. before
—I brought it to you ________ you were in the reading room yesterday.
A. when
B. if
C. because
D. before
答案
A
7. —Perhaps I’m going to the market this afternoon.
—Would you get me some juice ________ you’re there?
A. since
B. before
C. if
D. after
—Would you get me some juice ________ you’re there?
A. since
B. before
C. if
D. after
答案
C
8. —How long have you learned to play the piano?
—It’s already about ten years ________ I went to the primary school.
A. before
B. after
C. when
D. since
—It’s already about ten years ________ I went to the primary school.
A. before
B. after
C. when
D. since
答案
D
9. He had ________ much work to do that he couldn’t go out.
A. so
B. such
C. as
D. too
A. so
B. such
C. as
D. too
答案
A
10. —Would you like to go to the cinema with me tonight?
—I’d love to, ________ I’m sorry I can’t. I have to stay at home.
A. or
B. and
C. so
D. but
—I’d love to, ________ I’m sorry I can’t. I have to stay at home.
A. or
B. and
C. so
D. but
答案
D
11. —Would you like to go to the park with me, Susan?
—I’d like to, ________ you don’t want to go alone.
A. until
B. before
C. if
D. after
—I’d like to, ________ you don’t want to go alone.
A. until
B. before
C. if
D. after
答案
C
12. I wonder ________ they finished so many different jobs in such a short time.
A. why
B. how
C. when
D. where
A. why
B. how
C. when
D. where
答案
B
13. It is difficult for us to learn a lesson in life ________ we’ve actually had that lesson.
A. when
B. after
C. since
D. unless
A. when
B. after
C. since
D. unless
答案
D
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