三、状语从句

Choose the appropriate answer from the 4 choices marked A，B，C and D.

1.________you are leaving tomorrow，we can eat dinner together tonight.

A.Since　B.Before　C.After　D.While

2.________，the old man had a sharp ear for even the slightest.

A.As he was blind　B.As blind as he was

C.As he was just blind　D.Blind as he was

3.Mary has been sad recently，________her plan to go to college fell through at the last moment.

A.until　B.which　C.although　D.for

4.The police knew nothingabout the case________you call them.

A.since　B.while　C.until　D.after

5.________he was an old customer，the boss allowed 10%discount off the prices of the goods.

A.Gave　B.To give that　C.Giving that　D.Given that

6.She did verywell in her exam________she had studied so little.

A.considering　B.although　C.because　D.when

7.________there were no buses，we had to walk back.

A.while　B.Unless　C.For　D.As

8.She made a note of it________she might forget.

A.so that　B.in order that　C.if　D.in case

9.We are not going to operate on him________it is absolutely necessary.

A.if　B.unless　C.as long as　D.so far as

10.We'll visit Europe next year________we have a definite volume.

A.lest　B.until　C.provided　D.unless