(have) the policeman known the tourists were in trouble he might have managed to help them out

分类: 作业答案 • 2021-12-28 17:54:18

问题描述：

(have) the policeman known the tourists were in trouble he might have managed to help them out
为什么不用had

答

might是情态动词,情态动词后用动词原形,望采纳