Do you have any idea ____ is actually going on inthe classroom? [ ]A. th

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Do you have any idea ____ is actually going on inthe classroom?     [     ]
A. that
B. what
C. as
D. which

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举一反三

Some researchers believe that there is no doubt____a cure for AIDS will be found. [     ]
A. which
B. that
C. what
D. whether

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Tomorrow is Tom"s birthday. Have you got any idea____the party is to be held? [     ]
A. what
B. which
C. that
D. where

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There is much chance____Bill will recover from his injury in    time for the race.    [     ]
A. that
B. which
C. until
D. if

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-It"s thirty years since we last met.
-But I still remember the story,believe it or not,_____we got  lost on a rainy night.  [     ]
A. which
B. that
C. what
D. when

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Danby left word with my secretary____he would call again in    the afternoon.    [     ]
A. who
B. that
C. as
D. which

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