9．Amy better last night.but she was a little nervous and didn't reach her best standard．( )A．——青夏教育精英家教网——

9．Amy ______ better last night，but she was a little nervous and didn't reach her best standard．（　　）

	A．	could perform		B．	must have performed
	C．	should perform		D．	could have performed

8．Drivers are supposed to limit the speed in neighborhoods because children ____ be playing there．（　　）

7．If you want to make progress，you __________ work harder than before．（　　）

6．You __________ get changed because the party is not formal．（　　）

5．-I called you last night，but nobody answered it．
-Oh，I __________ my friend at the station．（　　）

4．-Listen!Is our art teacher，Ms Wang，playing the piano in the next room？
-No，it ___________ be her．She has gone to Shanghai．（　　）

3．---Did you watch the program Voice of China on Friday night？It was wonderful．
---I wish I had，but I ________ for the mid-term examination then．（　　）

2．Now I'm getting old，and I ________be careful not to hurt myself．（　　）

1．-What are you doing，Anson？
-I，m studying the blueprint（蓝图） of the library that _____ soon．（　　）

20．-It's none of your business that I beat my son to death!
-But it is illegal．According to the law，parents punish their children physically．（　　）

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