问题
That passenger was very impolite to the conductor, ______, of course, made things even worse.
A:who
B:which
C:what
D:that
B:which
C:what
D:that
正确答案是：
同类题型
Unless some extra money________, the theatre will be close
“How long have you worked on the farm”“____ the end of last year.”
I support your decision, but I should make it clear that I am not going to be _____ to carry it out.
Facebook is one of the most popular websites in Britain ___ over twenty-five million users.