【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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相关题目
【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
④
were objected to having
【单选题】
Having been asked to speak at the convention __________
①
some notes were prepared for Dr. Smith
②
Smith prepared some notes
③
The convention members were pleased to hear Dr. Smith
④
Some notes were prepared by Dr. Smith
【单选题】
The snowstorm _____________ us three hours because we had to drive very slowly.
①
decided
②
deepened
③
delayed
④
detailed
【单选题】
Only when we landed______ how badly the plane had been damaged.
①
we realized
②
did we realize
③
had we realized
④
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
③
whose all homes
④
all of whose homes
【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
③
whose all homes
④
all of whose homes
【单选题】
If the doctor had been available, the child ____________.
①
would not die
②
could not have died
③
might not die
④
should not have died
【单选题】
When we were having a party, the host _______ the bad news.
①
was telling
②
was told
③
could tell
【单选题】
During the Second World War, once before, the U-boats had been _____ because of air attack.
①
in trouble
②
in the trouble
③
for trouble
④
within trouble
随机题目
【单选题】
下列描述正确的是
①
弛豫是指纵向磁化减小与横向磁化产生
②
每种组织的弛豫时间是一个绝对值
③
每种组织的T1都大于T2
④
纵向弛豫时间是从0恢复到最大
⑤
横向弛豫时间是从最大值降到63%