题目内容
18．Sometimes you're supposed to come early．（改为否定句）Sometimes youaren'tsupposed to come early．
分析 有时候你应该来早点
有时候你不应该来早点．
解答 答案是：aren't．含有be动词的否定句，直接在be动词后加not即可，故填aren't．
点评 含有be动词、情态动词和助动词的句子变为否定句在他们的后面加not即可，可用缩写形式．
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Choose the best answer from A、B or C according to what you read．
46．You can visit Ocean Museum onC
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A.73 B.67 C.27
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A.5hours B.8hours C.10hours
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| Ocean Museum 9：00-17：00Thursday to Sunday Price：50yuan 132College Street Tel：543-9871 Show you a full picture of sea lives! | Health Centre 9：00-17：30 16Yongle Street Tel：380-1451 Free exams for those over 70 Give you good advice to keep healthy! |
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A.73 B.67 C.27
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A.5hours B.8hours C.10hours
49．If you want to live in Red Wall Hotel，you should payA per night at least．
A.$32 B.75 C.83
50．If your sister wants to fly to New York，she had better stay atC．
A．Beihai Park B．Health Centre C．StayOne Boutique Hotel．
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