Some researchers believe that there is no doubt______a cure for AIDS will be found.
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A
whether
B
that
C
what
D
which
推荐题目
If you feel tired and sick of fat food, that is ______ you have to go to the hospital for medical examination.
#73982
A
why
B
whether
C
when
D
what
I like to go shopping at the weekdays,_____the shop isn’t crowded.
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A
which
B
when
C
that
D
where
---- What did Walt Disney do after ________ school?---- He sold newspaper and delivered mail.
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A
leave
B
left
C
leaves
D
leaving
At the evening party the host said ______ was able to solve the riddle could get a nice present as a reward.
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A
whomever
B
who
C
no matter who
D
whoever
I walked up to the top of the hill with my feiend, we enjoyed a splendid view of the lake
#68917
A
which
B
where
C
who
D
that