While building a tunnel through the mountain, ________ .
#84284
A
an underground lake was discovered
B
there was an underground lake discovered
C
a lake was discovered underground
D
the workers discovered an underground lake
推荐题目
 So excited _____ that he couldn’t say a word.
#84026
A
was he
B
he was
C
did he be
D
did he was
.Only when your identity has been checked ________.
#80677
A
you are allowed in
B
you will be allowed in
C
will you allow in
D
will you be allowed in
     in your position, I would help him. 
#81691
A
Was I
B
Were I
C
If I am
D
If I had been
—Did you see who the driver was?  —No, so quickly_________ that I couldn’t get a good look at his face. 
#83017
A
does the car speed by
B
the car sped by
C
did the car speed by
D
the car speeds by