—How unhappy your roommate looks!—Yes, but he's not willing to tell me what it is _______ is troubling him.
#72642
A
what
B
which
C
as
D
that
推荐题目
Many children，______ parents are away working in big cities，are taken good care of in the village.
#74306
A
their
B
whose
C
of them
D
with whom
— Obama won the election. It’s amazing!— Yes. But the result was within ______ we had expected, ______ brought great joy to many young people and the black.
#74371
A
that; which
B
that; that
C
what; what
D
what; which
There is no doubt at all ________she will call us when she gets there.
#68048
A
if
B
whether
C
what
D
that