We must have an engineer ______ the workers build the house.a.to see b.see c.seeing d.seen
We must have an engineer ______ the workers build the house.
a.to see b.see c.seeing d.seen
为何选B?
人气：351 ℃ 时间：2020-04-10 07:59:32
解答
have sb do sth 让某人做某事
have sb doing sth 让某人一直做某事
这里用B合适
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