【題目】—Nowadays a growing number of people go to work by bike.

—Bicycling is good exercise；________it doesn't pollute the air.

A．therefore B．moreover C．however D．otherwise

【答案】 B

【解析】考查副詞辨析。句意：——現(xiàn)在，越來(lái)越多的人騎自行車上班�！T自行車是很好的運(yùn)動(dòng)，而且不污染空氣。moreover此外，而且；therefore因此；however然而；otherwise否則。

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