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1.________ you show any fear, the tiger will attack you.
A. Once B. Until C. Till D. While
2. The master will not attend our meeting________he________free.
A. if, will be B. if, is
C. unless, shall be D. unless, is
3. No matter________ busy he is, he won’t give up his hobby.
A. who B. how C. what D. where
4. She could not walk________she was eight years old.
A. when B. until C. if D. unless
5.________ I could write down the number of the bus, it had run away.
A. Before B. Unless C. Until D. Once
6. She had to go back to the room________she had left her handbag there.
A. unless B. until C. because D. where
7. Shall we go outing________ fine tomorrow?
A. unless it is B. if it will be
C. if it is D. whether it is
8.________ I got there, I found a stranger sitting in the corner of the car.
A. when B. Till C. Though D. Because
9. I tried to call you________ I heard from him, but you were not in.
A. since B. while C. until D. as soon as
10. Time is not enough, so they can’t finish the task in time________ we don’t offer them help.
A. when B. unless C. if D. while
11.________ he returns nothing can be done.
A. Till B. Until C. That D. Whether
12. You will succeed sooner or later________ you work hard.
A. unless B. until C. till D. as long as
13.________it’s getting dark, we are still working in the field.
A. As soon as B. Even though C. If D. Because
14. Speak louder________ your teacher can hear what you said.
A. since B. because C. for D. so that
15. We’ll never give up our plan________ happens.
A. however B. whenever C. wherever D. whatever
16. He worked________ hard________ he passed the exam.
A. such, that B. so, that C. as, as D. too, to
17. He looked________he was drunk when I saw him yesterday.
A. for B. after C. as if D. like
18. You should do it________ it is too late, otherwise you will fail.
A. until B. when C. before D. unless
19. To tell you the truth, I have decided to stay________.
A. until my mother gets well B. until my mother will get well
C. when my mother gets well D. before my mother will get well
20. He looks very happy________ he is poor.
A. because B. when C. although D. after
Key: 1-5 ADBBA6-10 CCADC11-15 BDBDD16-20 BCCAC
A. Once B. Until C. Till D. While
2. The master will not attend our meeting________he________free.
A. if, will be B. if, is
C. unless, shall be D. unless, is
3. No matter________ busy he is, he won’t give up his hobby.
A. who B. how C. what D. where
4. She could not walk________she was eight years old.
A. when B. until C. if D. unless
5.________ I could write down the number of the bus, it had run away.
A. Before B. Unless C. Until D. Once
6. She had to go back to the room________she had left her handbag there.
A. unless B. until C. because D. where
7. Shall we go outing________ fine tomorrow?
A. unless it is B. if it will be
C. if it is D. whether it is
8.________ I got there, I found a stranger sitting in the corner of the car.
A. when B. Till C. Though D. Because
9. I tried to call you________ I heard from him, but you were not in.
A. since B. while C. until D. as soon as
10. Time is not enough, so they can’t finish the task in time________ we don’t offer them help.
A. when B. unless C. if D. while
11.________ he returns nothing can be done.
A. Till B. Until C. That D. Whether
12. You will succeed sooner or later________ you work hard.
A. unless B. until C. till D. as long as
13.________it’s getting dark, we are still working in the field.
A. As soon as B. Even though C. If D. Because
14. Speak louder________ your teacher can hear what you said.
A. since B. because C. for D. so that
15. We’ll never give up our plan________ happens.
A. however B. whenever C. wherever D. whatever
16. He worked________ hard________ he passed the exam.
A. such, that B. so, that C. as, as D. too, to
17. He looked________he was drunk when I saw him yesterday.
A. for B. after C. as if D. like
18. You should do it________ it is too late, otherwise you will fail.
A. until B. when C. before D. unless
19. To tell you the truth, I have decided to stay________.
A. until my mother gets well B. until my mother will get well
C. when my mother gets well D. before my mother will get well
20. He looks very happy________ he is poor.
A. because B. when C. although D. after
Key: 1-5 ADBBA6-10 CCADC11-15 BDBDD16-20 BCCAC