1、________ you are leaving tomorrow, we can eat dinner together tonight.
A.For
B.Since
C.Before
D.While
2、I wish I could have attended the job fair yesterday, but I ______ it.
A.will miss
B.missed
C.would miss
D.miss
3、His family were grateful _____ the support they _____ from their friends.
A.to; received
B.for; have received
C.with; had received
D.for; had received
4、Since nobody gave him any help, he _______ have done the research on his own.
A.can
B.must
C.would
D.need
答案解析:
1.【答案】B。解析:考查让步状语从句。句意为既然你明天就走了,我们可以今晚一起吃晚饭。since意为既然,故选B。
2.【答案】B。解析:考查虚拟语气。句意:我希望昨天参加招聘会,但是我错过了。根据I wish可以判断出题目考查的是虚拟语气,根据yesterday可以判断是对过去的虚拟,but后面是昨天发生的事,是事实,用过去时。故选B。
3.【答案】D。解析:考查固定短语和时态。句意:他的家人很感激朋友给他们的支持。第一空表示“感激……”短语为be grateful for sth.;第二空receive发生在“感激”之前,即“过去的过去”,故应用过去完成时。故选D。
4.【答案】B。解析:考查情态动词。句意:既然没人给他任何帮助,他一定是独立完成了该项研究。由前半句提供的原因,可看出设空处要表达一种有把握的肯定的推断。must have done表示对过去情况的肯定性推测,意为“一定做过某事”,故选B。
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