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
So tired of corn-bread that he eats it with tears in his eyes.
#82197
A
is he
B
he is
C
he was
D
was he
I tried every means to reach my goal but failed. So desperate ______ that I almost lost heart.
#82935
A
I did feel
B
did I feel
C
felt I
D
I felt
Mother reminds, “________ rain, take an umbrella.” as spring approaches.
#79729
A
Shall it
B
It shall
C
Should it
D
It should
Nobody would stand out admitting the fact,for some reason,________ they lost the game.
#80106
A
that
B
which
C
what
D
why
By the side of the teaching building of our school _____, which was completed in 2009.
#82862
A
there standing the library
B
does the library stand
C
the library stands
D
stands the library
