She understood what I was talking about, ____ it was the first time we had spoken together.
#30906
A
whether
B
as if
C
even if
D
Since
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You will make much progress in English you work hard.
#33075
A
as far as
B
as soon as
C
as long as
D
as well as
This building is both a secret and a mystery. No one shall be admitted into it ______ he can give the right password.
#32225
A
if
B
as
C
since
D
unless