What the doctor really doubts is ______ my mother will recover from the serious disease soon.
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A
when
B
how
C
whether
D
if
推荐题目
He is going to build a team that has a lot of potential and he thinks that is ____ excites him.
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A
that
B
which
C
what
D
as
What makes online shopping so popular is it shortens the distance between manufacturers and consumers．
#79340
A
how
B
that
C
whether
D
why
—The two people speak different languages and can not communicate with each other well.—Oh，I see. That’s ________ misunderstanding occurs.
#79326
A
when
B
what
C
which
D
why
Courage is a good quality and is ________ it takes to get over difficulties.
#79374
A
that
B
what
C
which
D
where