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There was ______ time _____ Chinese used foreign oil.
#31021
A
/; when
B
a; while
C
a; when
D
/; while
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John was cleaning the window and          Mary was watching TV.
#33577
A
at the meantime
B
when
C
meanwhile
D
while
It’s not easy to change habits，________ with awareness and self­control，it is possible.                                                             
#30237
A
for
B
or
C
but
D
so
 ----Will you tell the secret to the teacher?  --- No!  ____ asked to.
#34001
A
Even if
B
Even as
C
Even so
D
If
His words reminded me        a woman had told me before.
#32986
A
that
B
of which
C
what
D
of what
_________ I traveled by boat, I got seasick.
#34724
A
After
B
Each time
C
The every time
D
Each time when