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
I have been living in the town for nearly thirty years, but seldom _____as lonely as I do now.
#82985
A
have I felt
B
I had felt
C
I have felt
D
had I felt.
If Joe's wife doesn’t go to the party, ________.
#80869
A
neither does he
B
neither will he
C
so does he
D
so he will
Europeans made ______ clear that they did not want to take the Romans as neighbors.
#81510
A
so
B
very
C
it
D
that
______ late, he also forgot his books.
#82413
A
Not only he turned up
B
Not only he turned out
C
Not only did he turn out
D
Not only did he turn up