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单选题公共英语三级

2011-08-17

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参考答案

考点：被动语态和时态
句子意思是冰块的来源不能被确定，应该用被动语态，而这里讲述的是过去的动作，需要用一般过去时，故选C。

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2 Questionsare based on the following dialogue.What are the two speakers talking about?

A． How to arrange for a tri

B． How to book a satisfactory roo

C． When the shop will be close

D． What the weather is lik

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3 Why is it not necessary for the man to take a taxi to the hotel?

A． Because there is an excellent bus servic

B． Because there is an excellent railway servic"

C． Because there is an excellent subway syste

D． Because taxi system there isn't convenien

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