I saw the train______into the station slowly a minute ago A.comes B.is coming C.to come D.coming

问题描述:

I saw the train______into the station slowly a minute ago A.comes B.is coming C.to come D.coming

正确答案为:
D
前saw为过去时,所以后面也要为过去的时态,
所以AB不对
see 后面不跟带to的动词不定式,所以C不对
see sb doing sth 看见某人正在做某事,符合句意,选D