单项选择题

With the countrys population increasing to 3 billion, many of Chinas rivers, including the legendary Yellow River, ______
A.is drying up
B.will be drying up
C.had dried up
D.are drying up

A.is
B.will
C.had
D.are
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单项选择题
Our class______all fond of singing English songs and we can sing ______than others.A.is; many moreB.are; many moreC.is; much moreD.are; much more
A.A.is;
B.are;
C.is;
D.are;
单项选择题
Collecting stamps as a hobby______increasingly popular during the past ten years.A.becameB.becomesC.has becomeD.have become
A.A.became
B.becomes
C.has
B.have
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