您的位置: 首页  >  作业答案  >  英语  >  1、It's highly necessary that Jack____to confirm his flight reservation before Friday.A come B comes C must come D came为什么选A啊?2、The directions stressed that it was vital that test-takers___there on time.A were B must be C be D would be 这个为什么选C?

1、It's highly necessary that Jack____to confirm his flight reservation before Friday.A come B comes C must come D came为什么选A啊?2、The directions stressed that it was vital that test-takers___there on time.A were B must be C be D would be 这个为什么选C?

分类: 作业答案 • 2022-07-06 14:45:38
问题描述：

1、It's highly necessary that Jack____to confirm his flight reservation before Friday.
A come B comes C must come D came
为什么选A啊?
2、The directions stressed that it was vital that test-takers___there on time.
A were B must be C be D would be
这个为什么选C?

答

都是虚拟语气
should+动词原形，should省略了

答

1,虚拟语气省略SHOULD
2,同理

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