They _____ the apartment,or they wouldn’t have stayed so lon

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/26 17:27:58

They _____ the apartment,or they wouldn’t have stayed so long.
A) must like B) must be like C) liked D) must have liked
请问这个选什么?为什么?

1.答案：D.
2.翻译：他们一定曾经喜欢过这套公寓,否则他们不会（在那）呆了那么久.
3.
1）后句是对过去的动作的虚拟,所以前句也是对过去情况的描述.
可以排除AB,因为“must + 动词原形”一般是对现在/将来的情况的描述.
2）must have done sth “一定做过某事”,表示对过去情况非常肯定的推测,而C liked描述的是一种过去的事实.
从句意来看,前句应该是说话人的一种推测,所以答案选D最好.

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