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