19,一道英语选择题的诱惑We must have an engineer ______ the workers build the house.A.to seeB.seeC.seeingD.seen
问题描述:
19,一道英语选择题的诱惑
We must have an engineer ______ the workers build the house.
A.to see
B.see
C.seeing
D.seen
答
A
That's right!
答
B
答
A
have sb.to do sth.让某人做某事 用于被动句中
答
D
must have +P.P