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21.You are very _______ to take the trouble to help me. I can not thank you enough.

A. whisper

B.vital

C.thoughtful

D.considerable

22.What’s your favorite kind of music? Do you like _______ music.

A. domestic

B.classical

C.existence

D.feature

23.This nation is noted for its economic _______.

A. uniform

B.stability

C.gulf

D.democratic

24.He wants to _______ his appointment from Monday to Wednesday.

A. transfer

B.decay

C.advance

D.postpone

25.This is what I could do. There is no other _______ for me.

A. sleeve

B.residence

C.burden

D.alternative

26.Our teacher always sees the _______ side of everything.

A. spot

B.negative

C.efficient

D.robot

27.If you want to make a call, first, pick up the _______,then deposit a coin in the slot.

A. receiver

B.speaker

C.microphone

D.hook

28.The service in this restaurant is not good. Even the _______ is very dirty.

A. milk

B.salad

C.soup

D.menu

29.I am _______ enough to make up my own mind. You do not need to teach me.

A. young

B.mature

C.numerical

D.guarantee

30.I’m _______ you’ve made the right choice.

A. bond

B.confident

C.double

D.gravity

答案:

21.C 22.B 23.B 24.D 25.D

26.B 27.A 28.D 29.B 30.B