单项选择题
Riding bikes has advantages（）driving cars（）many aspects.
A.above；inB.over；inC.on；onD.with；on
单项选择题 （）Smiths are on holiday now, but（）White often comes to look for them．
单项选择题 Much of her time has been（）in paper work, so she is not able to do physical work．
单项选择题 Abbey is（）me in the company，though she is five years（），she came before me．
