He had just sent an email to his pal on the Internet ________ the system broke down.
#30932
A
while
B
when
C
after
D
since
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— May I go and play with Dick this afternoon, Mum?No, you can’t go out _______ your work is being done.
#80085
A
before
B
until
C
as
D
the moment
It will be long she sees Mr. White again at Beijing, business has just started in Switzerland.
#30595
A
after; who
B
since; who
C
when; whose
D
before; whose
It is because she loves her students _____ she is respected by them.
#33103
A
who
B
which
C
what
D
that
A small car is big enough for a family of three ________ you need more space for baggage.
#30682
A
once
B
because
C
if
D
unless