I wonder whether the teacher is one of those who _______ to the mountain village to help the children there.
A.have sent | B.has sent | C.has been sent | D.have been sent |
推荐套卷
I wonder whether the teacher is one of those who _______ to the mountain village to help the children there.
A.have sent | B.has sent | C.has been sent | D.have been sent |