--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
推荐题目
Only after a baby seal is pushed into the sea by its mother ___ to swim.
#84540
A
how will it learn
B
it will learn how
C
will it learn how
D
and it will learn how
-- The weather forecast says it’ll be fine tomorrow. --- ________, what about going hiking ?
#80401
A
If possible
B
If necessary
C
If so
D
If not
Not until all the fish died in the river ______ how serious the pollution was.
#83100
A
the villagers did realize
B
the villagers realized
C
did the villagers realize
D
didn’t the villagers realize
Only __________ one loses freedom __________know its value．
#81832
A
when, he does
B
when, does he
C
what, he did
D
that, did he
Only _____ as an interpreter _____ how important it was to practise spoken English.
#80411
A
when did I work…I realized
B
when did I work…did I realize
C
when I work…did I realize
D
when I worked…did I realize