___ most of the earth’s surface is covered by water, fresh water is very rare and precious.
#31448
A
As
B
Although
C
If
D
Once
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Most of the developing countries are faced with lots of troubles , _____the financial problem is not the worst .
#34828
A
which
B
with which
C
that
D
of which
Losing weight may not be just about what you eat when you eat it, according to a new study.
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A
so
B
and
C
but
D
for
______is expected, according to the online survey, is that house prices will not go up any more.
#32203
A
As
B
It
C
Which
D
What