问题补充：
Riding bikes has advantages driving cars many aspects.
A. above; in
B. over; in
C. on; on
D. with; on
答案：
A. above; in
(答案→)B. over; in
C. on; on
D. with; on
解析：这题考查介词的用法：第一空填over，词组：have advantages over“比…有优势”，第二空填in，词组in many aspects“在很多方面”。选B
