Mr．White at 8:30for the meeting.but he didn't show up．( )A．should have arrivedB．should arriveC．had arrivedD．should be arriving 题目和参考答案——青夏教育精英家教网——

题目内容

7．Mr．White __________ at 8：30for the meeting，but he didn't show up．（　　）

	A．	should have arrived		B．	should arrive
	C．	had arrived		D．	should be arriving

分析怀特先生本应该八点半参加会议，但他没有出现．

解答答案：A
句意表达的是相反假设，要用虚拟；对过去的虚拟，要用情态动词加完成时态，表示本应该做而没有做的事情．故选A．

点评虚拟语气是表示与事实相反的假设，构成方式有：对现在或将来，条件句中用一般过去时态，主语用情态动词加动词原形；对过去，条件句中用过去完成时态，主语用情态动词加完成时态．学习时，要牢记构成方式．

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