I don’t know _____.
#38422
A
what happened to him
B
what did he happen
C
what he happened
D
what was the matter
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Cindy shut the door heavily and burst into tears. No one in the office knew _____ she was so angry.
#78927
A
where
B
whether
C
that
D
why
(2013·山东，30)It's good to know________the dogs will be well cared for while we're away.
#78840
A
what
B
whose
C
which
D
that
We haven’t settled the question of it is necessary for him to study abroad.
#79103
A
what
B
whether
C
that
D
where
He states that good qualities such as honesty and self-discipline make ____he is today.
#78906
A
whom
B
how
C
what
D
which
I never doubt ______________.
#36617
A
whether Tom has told me the truth or not
B
that whether has Tom told me the truth
C
that Tom has told me the truth
D
if Tom has told me the truth