________ the Internet is bridging the distance between people, it may also be breaking some homes or will cause other family problems.
#33168
A
When
B
While
C
If
D
As
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________ he stops driving himself like this, he'll have a breakdown.
#30254
A
Until
B
Once
C
Since
D
Unless
People in some countries waste water______ people in others don’t have enough to drink.
#31420
A
while
B
because
C
if
D
so
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
Mrs Green was so pleased ____ her daughter won the first place in the singing competition．
#31502
A
as
B
that
C
when
D
if