—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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—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 |