Jack was halfway back to the village where his mother lived _____ Mary caught up with him.
#31859
A
when
B
while
C
until
D
though
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John felt very embarrassed ________ he entered the government hall.
#30995
A
for the moment
B
the first time
C
for the first time
D
at the moment
________ reducing pullution, man should pay more attention to conserving energy.
#79708
A
As well as
B
As long as
C
As far as
D
as soon as
All over the world the mobile phone has leaped from being an impossible luxury in the early 1980s to most people would now call a necessity.
#33171
A
which
B
that
C
what
D
when
We can't complain that children are cheating in examinations ______ adults themselves have set such a bad role model for them to follow.
#30697
A
because
B
unless
C
when
D
though
It is not until May, 2013 the online consultation comes to an end the draft will be officially in force．
#32378
A
when; that
B
that; that
C
that; when
D
before; that