A)单项填空 从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21. Many of today's travellers are trying to find_______ unusual experience or adventure.
Hiking may be_______ good choice.
A. a; ／ B. an; a C. /,a D. a; a
22. - What colour would you like to wear if you are in a bad mood?
-I prefer_______ warm colours_______ me happy.
A. to wear; to make B. wearing; to making
C. to wear; to making D. wearing; making
23. She_______ ask her parents for the pocket money.
A. doesn't dare B. daren't to C. dares not D. dare not
24.1 was born here. I'm quite_______ the streets in this town.
A. busy with B. strict with C. familiar with D. careful with
25. It is very kind_______ you to help me with m
