--- I really don’t know how ________ this problem.--- Let me see.
#49068
A
to do with
B
to deal with
C
doing with
D
dealing with
推荐题目
—I have never been to the Great wall. —If you have an opportunity _______ there, you must take it.
#48916
A
to go
B
to going
C
going
D
go
Frank asked his father ____ a new bike for him and his father said OK.
#49363
A
buy
B
to buy
C
buying
D
bought