He was impolite to the Custom Officer, ____, of course, made things even worse.
#73073
A
who
B
that
C
what
D
which
推荐题目
—The meeting is about to start, yet the speaker hasn’t turned up.— No one knows ____.
#70404
A
what the matter is
B
what is the wrong
C
what is the matter
D
how matter stood
People are recycling many things which they      away in the past.
#66646
A
had thrown
B
will be throwing
C
were throwing
D
would have thrown