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问题 选择题
—I called you at 9 last night，but no one answered.
—Sorry，I ________ sleeping.I went to bed very early.
A．need have beenB．would have been
C．must have beenD．should have been
答案

C

解析　根据答语中的“I went to bed very early”可知，此处为肯定推测，用must，表示问话人打电话时，答话人一定正在睡觉。must have done表示过去肯定做了某事。

填空题
选词填空。
ball      plane      doll      cake     kite
1. Throw the _______________________.
2. Hold the _______________________.
3. Eat a _______________________.
4. Bounce the _______________________.
5. Fly the _______________________.
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选择题

—How do you spell it?—_______.

A．Yes, F-A-X fax.

B．No, F-A-X fax.

C．It’s a fax.

D．F-A-X, fax.
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