13． all the homework assigned by the school the students have to work at it till midnight( )A．C——青夏教育精英家教网——

13．______all the homework assigned by the school the students have to work at it till midnight（　　）

	A．	Completing		B．	To complete
	C．	Having completed		D．	To have completed

12．-How about starting work tomorrow？
-Sorry，but I can't possibly start until Tuesday．_____（　　）

	A．	Will that be OK？		B．	Is that a good idea？
	C．	Do you think I'm right？		D．	Can't you agree with me？

11．-You know what？I am going to Shanghai on a free trip this weekend．
--_____（　　）

	A．	Good for you!		B．	It is none of my business．
	C．	You must have been cheated．		D．	So what？

10．-Don't go out，please．It's raining heavily outside．
-______．I have to meet my brother at the airport．（　　）

9．Williams takes ______encouraging when so many students attend his lecture．（　　）

8．-I guess the key to the problem is the choice"A"．
-______（　　）

	A．	That's it		B．	That's great
	C．	That's OK		D．	That's all right

7．She can't help _____the house because she's busy making a cake in the kitchen．（　　）

6．-It's been a wonderful evening．That's very kind of you．
________（　　）

	A．	It's my pleasure		B．	With pleasure
	C．	Go ahead		D．	Not really

5．Alexander Graham Bell became famous overnight byinventing（发明）the telephone．

4．It isdangerous （危险地） for children under five years old to be left alone at home．

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