When asked why he prefers bikes to buses, the professor said, “Riding a bicycle

When asked why he prefers bikes to buses, the professor said,  “Riding a bicycle takes __________ half an hour, but it’s more convenient and environmentally friendly. ”

A.absolutely

B.accurately

C.approximately

D.exactly

试题答案

C

考查副词辨析。absolutely 绝对地   accurately 精确地   approximately 大约exactly恰好，正是 根据句意：骑自行车需要花费大约半小时，但更方便更环保。