(2013·四川省乐山一模)The pupils were playing games in the classroom ________ a gunman entered and began shooting wildly at them.
#30425
A
while
B
when
C
as
D
before
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Mary rushed home_______ she heard the news, only______ that her husband was gone.
#80434
A
as soon as; finding
B
immediately; to find
C
the moment; find
D
when; found
You can borrow my car ________ you promise not to drive too fast.(2012·江西，31)
#30441
A
unless
B
even if
C
in case
D
as long as
With some technical problems to be solved, it may be a while _______ the system is put into use.
#32713
A
when
B
after
C
since
D
before
You often say that everyone should be equal, and this is ____Ｉdisagree.
#80452
A
why
B
where
C
what
D
how
You have been reading to me __________ James went out.
#31662
A
the moment
B
before
C
when
D
ever since