填空,每空一词1.She ____ ____ ____ (应该已经完成)the work yesterday,or sh
3个回答

1.should have finished

析:should have done 应该做完某事(事实上却没有)

2.When was it

析:考察强调句型,还原成陈述语句就好理解了

It was when that his brother went to America.

3.His father has been suffering heart disease and hasn't recovered yet.

析:从“至今还没有”可以看出必须用现在完成时,而且前一句必须用现在完成进行时,表示患病这种状态一直持续到现在.

4.trust,according to

译:她知道她不得不相信父母,而且根据他们所说,这是很有必要的.