14．The old lady didn't know when the house caught fire．( )A．how to doB．how to do itC．wh——青夏教育精英家教网——

14．The old lady didn't know _____________when the house caught fire．（　　）

13．Tom's dream in China is to go into the west and_____a school there．（　　）

12．-How long may I _____this book？
-Three days．（　　）

11．When he saw a ticket on the ground，he stopped_____．（　　）

10．-Did you reach the top of the mountain？
-Yes．Even I didn't believe I could _____it．（　　）

9．We ______ TV ______ the telephone rang．（　　）

	A．	watched； when		B．	watched； while
	C．	were watching； when

8．She still can't get used to ____ there．（　　）

7．Thanks to（多亏了）Mr．Wang and the passengers，the doctors saved the man in time．

6．He has too manyafter-school classes（课外班），so he often feels tired．

5．The fog wasdying down（消退）．

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