[单选题]Which of the following can we infer from the passage?

正确答案 ：C

The supermarket might just play a trick so customers should be more cautious.

解析：解析：本题也是一个推理题，由本实例说明商场会玩一些小把戏促销，所以消费者应该对此多加小心不上当。其他的选项说法没有足够的理由在任何情况下都成立。

[单选题]Which of the following objects was an important woodworking tool used by early American craftsmen?

正确答案 ：D

A chisel

解析：解析：应该在文章中找到每一个选项的单词在文中出现的地方，然后判断出其是否是工具还是木雕作品。只有D选项chisel一词与另一种工具knife作为并列关系同时出现，所以可以判定其为另外一种工具。其他选项代表的全是木雕作品。

[单选题]All the firemen in the city were ______to fight against the big fire.

正确答案 ：C

called up

解析：解析：called in意为“回收”；called off意为“取消”；called up 意为“召集，打电话，使人想起”；called on意为“访问(某人)”。

[单选题]Mrs. White is different from her friends who were ______.

正确答案 ：B

not always hopeful

解析：解析：本题题干上的信号词为different和friends，依据句为“Unlike her friends， however，she never lost heart.”其中lose heart =lose hope。此句意为“她从来都是满怀希望，而她的朋友与她不同，并不是经常满怀希望”。

[单选题]How many tablets should one take before he goes to sleep?

正确答案 ：B

two

解析：解析：本题的依据句为“For maximum nighttime and early morning relief，take two tablets at bedtime.”B选项可以得到确认。

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