— Did you know any Chinese, Joyce, before you arrived in Beijing? — In fact, never _______ it.
#5016
A
have I learned
B
I have learned
C
had I learned
D
I had learned
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I haven’t seen______ this since I collected stamps.
#4923
A
as old a stamp as
B
so an old stamp as
C
stamp as old as
D
as an old stamp a
--I don't think we have met before.--Yes, once at a party, but we___________.
#4832
A
weren't introduced
B
didn't introduce
C
haven't introduced
D
were not introducing