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 Farmers have become ______ in our hometown in recent years.

A. more and more rich     B. richer and richer            C. more rich and more rich

 _____exercise you take, _____you’ll be.

A. The fewer, the fatter                      B. The less, the fatter  C. The less, the more fatter

 I have great_____ in learning math and I am so worried.

A. trouble              B. interest                C. fun

 A_____girl named Dong Xinyi looked after her disabled father.

A. three-year-old       B. three-years-old         C. three years old

The weather in Guiyang in summer is ______than that in Tongren. They’re different .

 A . cool          B. much cooler      C. hot             D. much hotter

If there is ______ pollution, the air in our city will be       dirtier.   

A．less; more   B．more; much   C．less; less       D．more; more

His grandparents live ____ in a small house, but they don’t feel _____．

A．lonely; alone    B．a(chǎn)lone; lonely    C．lonely; lonely   D．a(chǎn)lone; alone

—Peter is _______ than you, right?

—Yes, but he is _______ runner in our class.

A. heavier; best　 B. heavy; the best　 C. heavier; the best D. heavy; better

Eighteen kids died in the school bus accident in Gansu Province. It's_____ one that I have ever heard of.

A.a very serious B. a more serious C. the most serious D. the least serious

_____exercise you take, _____you’ll be.

A. The fewer, the fatter B. The less, the fatter C. The less, the more fatter