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  3. According to the air traffic rules, you________switch off your mobile phone before boarding.

According to the air traffic rules, you________switch off your mobile phone before boarding.

admin2022-02-18  39
问题 According to the air traffic rules, you________switch off your mobile phone before boarding.
选项 A、may
B、can
C、would
D、should
答案D
解析 本题考查情态动词的用法。本句意思为：根据航空守则，你应该在登机之前关闭手机。因此应该选择should。
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本试题收录于： 英语题库普高专升本分类
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