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【单选题】
We found him ___________ in the laboratory.

work
working
to work
worked
【单选题】
When we arrived at the airport, we found our flight ________.

cancelled
had cancelled
had been cancelled
has been cancelled
【单选题】
12. When we arrived, we found the meeting room crowded with ____ students.

quite a few
only a few
few
a few quite
【单选题】
When we came back, he found his bicycle ____

was stolen
had stolen
had been stolen
is stolen
【单选题】
_____ that we couldn’ t catch up with him.

So fast he ran
So fast did he run
So fast ran he
Such fast did he run
【单选题】
Although Jack made a foolish mistake, we __________ at him.

ought to have laughed
oughtn’t to have laughed
ought to laugh
should not to laugh
【单选题】
When Sarah and I ____ on an article for the school newspaper, we found it difficult to work together.

compiled
gathered
collaborated
collected
【单选题】
20.When he was in_____ hospital, we all went to _____ hospital to visit him .

the, /
/, the
the, the
the, a
【单选题】
After the experiment in the laboratory, they began _________ their reports.

written
write
to write
writes
【单选题】
1. I help him ____ he helps me. We help each other.

but
and
or
though