Perce Blackborow and his companions stayed on Elephant Island for six months before rescue came, so they ________ a lot of difficulties.
#87871
A
must go through
B
may go through
C
must have gone through
D
could have gone through
推荐题目
Most people advise that students’ heavy burden __________.
#87299
A
reduce
B
be reduced
C
to be reduced
D
reduced
If the island a tourist attraction, last week’s earthquake would have caused far more deaths.
#87041
A
is to remain
B
has remained
C
remained
D
would remain
— You _______ for me this morning. I came over here with Michael in his car.— Well, why didn’t you let me know earlier?
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A
should have waited
B
would have waited
C
couldn’t have waited
D
needn’t have waited
It is vital that we _____ act out at once to protect the environment.
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A
would
B
should
C
will
D
can
The chief editor demanded that the article ________immediately.
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A
must be submitted
B
would be submitted
C
submits
D
be submitted