Câu 11: Most people prefer ________ at home rather than ________out on rainy days. A. stay – go B. staying – go C. to stay –

Câu 11: Most people prefer ________ at home rather than ________out on rainy days.
A. stay – go B. staying – go C. to stay – go D. staying – going
Câu 12: The new agency is responsible for controlling air _________.
A. pollution B. polluted C. pollute D. pollutant
Câu 13: It never snows here _________Christmas.
A. at B. in C. on D. for
Câu 14: A lot of questions ________ since he came.
A. were answered B. have been answered
C. answered D. have answered
Câu 15: Travelling by plane is_________ than traveling by ship.
A. faster B. the faster C. the fastest D. fastest
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