题目列表(包括答案和解析)
7. Hurry up. ___we'll be late for school.
A. and B. but C. or D. so
6. Don't leave the classroom ____ you have finished the test.
A. by B. then C. only D. until
5. I hear ____ the professor will come back from the United States soon.
A. where B. then C. if D. that
4. He can neither speak ___ read French.
A. or B. nor C. and D. but
3. I haven't heard from him ___ he left home.
A. when B. since C. as D. if
2. you work harder, you will make some progress in chemistry.
A. If B. Whether C. Before D. Yet
1. It is late now.___ they must leave at once.
A. for B. or C. so D. because
10. I ___ go home ___ it was dark.
9. ___you are busy, you needn't do it now.
8. Great changes have taken place ___ you left.
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