Mr. Green______ my letter, otherwise he would have replied before now.

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问题 Mr. Green______ my letter, otherwise he would have replied before now.

选项 A、must have received
B、must have failed to receive
C、must receive
D、must fail to receive

答案B

解析 句意:格林先生肯定是没有收到我的信,否则他该回信了。本题考查虚拟语气。must+have+过去分词,表示对过去已经发生动作的推测。
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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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