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
网友回答
C解析考查副词辨析。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。