–The plane is due to take off at 7:50 from the airport.–________ we fail to arrive there in time. –Try to take another flight then.
#69435
A
What if
B
As if
C
Even if
D
Only if
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There’s no doubt _______ Emily will be the hostess (女主持) of the New Year’s party.
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if
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when
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what
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_____by a greater demand for vegetables, farmers have built more green houses.
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to drive
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Having driven
you may have, you should gather your courage to face the challenge.
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However a serious problem
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What a serious problem
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However serious a problem
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The great scientist became world-known in the early 1970s,______ he and another scientist made new discoveries about black holes.
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which
B
where
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when
D
then