Newresearchshowsthat.Newresearchshowsthat______ahands-freecellphoneisjustasriskyasusingahandheldcellphone.A.drivingtouseB.driveusingC.drivetouseD.drivingusing请问是选A吗?如果不是那选什么为什么?

问题：Newresearchshowsthat.Newresearchshowsthat______ahands-freecellphoneisjustasriskyasusingahandheldcellphone.A.drivingtouseB.driveusingC.drivetouseD.drivingusing请问是选A吗?如果不是那选什么为什么?

答案：↓↓↓

胡世光的回答：

网友采纳　　应该选D吧Newresearchshowsthat[driving（从句的主语)][usingahands-freecellphone（修饰driving)]isjustasriskyasusingahandheldcellphone.