--Did you visited the military museum?--Yes. Not until quite recently ________ any idea what a guided missile was like.
#80258
A
had I have
B
did I have
C
I had
D
I have had
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At the meeting place of the Yangtze River and the Jialing River________,one of the ten largest cities in China 
#80999
A
lies Chongqing
B
Chongqing lies
C
doer lie Chongqing
D
doer Chongqing lie
________ for the fact that she broke her leg, she might have passed the exam.
#79808
A
Hadn't it been
B
Had it not been
C
Was it not
D
Were it not
_____________ late, but also he forgot his books.
#82639
A
Not only did he turn up
B
Not only he turned up
C
Not only did he turn out
D
Not only he turned out