Upon into the blue sky ______ when we passed by its nest.
#80132
A
did the bird fly
B
flew the bird
C
the bird flew
D
had the bird flown
推荐题目
While watching television,______.
#80789
A
the doorbell rang
B
the doorbell rings
C
we heard the doorbell rings
D
we heard the doorbell ring
Not until they left school how much their teachers loved them and helped them.
#80702
A
they realized
B
did they realize
C
had they realized
D
they would realize
In a physical change no new substance is formed，__________ in the composition of matter.
#79521
A
nor does any change take place
B
nor any change takes place
C
not any change takes place
D
either any change takes place
Not until Mr. Smith came to China ___ what kind of a country she is.
#80528
A
did he know
B
he knew
C
he didn't know
D
he could know
-----Was it by cutting down employees she saved the company? -----No, it was by improving work efficiency.
#82235
A
how
B
that
C
when
D
what