题目内容
—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
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题目内容
—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