2. 外语
  3. Which of the following sentences expresses SPECULATION?

Which of the following sentences expresses SPECULATION?

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问题 Which of the following sentences expresses SPECULATION?
选项 A、We must finish our homework before 10:00.
B、You mustn’t smoke here.
C、Tom must be in, for the lights are on.
D、We must get someone to fix that wheel.
答案C
解析 考查情态动词must的用法。A“我们必须10点前完成作业”，must表示“义务”。B“你不许在此吸烟”，must表“法规禁止”。C“汤姆一定在家，因为灯亮着”，must表推测。D“我们必须找人修轮子”，must表“提议”。
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