Not until World War II ______ to use new chemical techniques to purify penicillin.
#81196
A
they managed
B
that they managed
C
did they manage
D
they didn’t manage
推荐题目
—Well. I do think the rabbit is a beautiful, gentle animal which can run very fast.—_____________.
#83957
A
So it is
B
So is it
C
So does it
D
So it does
Not only ________ interested in football but ________ beginning to show an interest in it.
#82598
A
the teacher himself is; all his students are
B
the teacher himself is; are all his teachers
C
is the teacher himself; are all his students
D
is the teacher himself; all his students are
---How was the weather then? ---Hardly _____ off the plane when it started to rain.
#81637
A
I had stepped
B
had I stepped
C
I stepped
D
did I step
Then we had been looking forward to.
#81082
A
came the moment
B
the moment came
C
comes the moment
D
the moment comes
Only when the government increases affordable homes for low-income groups________.
#84445
A
the imbalance of demand and supply can be removed
B
can be removed the imbalance of demand and supply
C
can be the imbalance of demand and supply removed
D
can the imbalance of demand and supply be removed