题目内容
7.The customers insisted that the product didn't live up to the advertising and ____ free of charge.( )A. | was exchanged | B. | be exchanged | ||
C. | must be exchanged | D. | has to be exchanged |
分析 顾客坚持认为这个产品与广告宣传不符合并且要求免费交换.
解答 答案是B.本题考查insist后接宾语从句的用法;insist表示"坚持要求"时从句中的动词用"should+do",should可以省略;但是insist表示"坚持说,坚持认为"时,根据一般宾语从句的规则:insist用过去时,从句中动词用与过去相关的时态;insist 是一般现在时,从句动词根据具体语境用各种时态;本题中and后的并列句表示"坚持要求"免费交换,故从句中的动词用"(should)+do",由此判断答案是B.
点评 在掌握虚拟语气的规则的基础上,判断题干属于什么类型的虚拟,然后根据语境,选用恰当的动词形式表达虚拟.
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