【单选题】【消耗次数：1】
All the flights _____because of the snowstorm, we had to take the train instead.
①
were canceled
②
had been canceled
③
having canceled
④
having been canceled
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【单选题】
All the flights ____ because of the snowstorm, we had
to take the train instead.
①
were canceled
②
had been canceled
③
having canceled
④
having been canceled
【单选题】
The match was canceled because most of the members______a match without a standard court.
①
objected to having
②
were objected to have
③
objected to have
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were objected to having
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Having been asked to speak at the convention __________
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some notes were prepared for Dr. Smith
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Smith prepared some notes
③
The convention members were pleased to hear Dr. Smith
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【单选题】
The snowstorm _____________ us three hours because we had to drive very slowly.
①
decided
②
deepened
③
delayed
④
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【单选题】
Only when we landed______ how badly the plane had been damaged.
①
we realized
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had we realized
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we had realized
【单选题】
The residents, _____had been damaged by the fire, were given help by the Red Cross.
①
all of their homes
②
all their homes
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whose all homes
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【单选题】
The residents, _____had been damaged by the fire, were given help by the Red Cross.
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all of their homes
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all their homes
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whose all homes
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【单选题】
If the doctor had been available, the child ____________.
①
would not die
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could not have died
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should not have died
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When we were having a party, the host _______ the bad news.
①
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①
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【多选题】
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①
A.优化开发区域
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【多选题】
关于生态文明建设，以下说法正确的有（ ）
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②
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