Thetwopensarethesame,buttheredonecost_____________thatone.
A.as much twice asB.twice as much asC.much as twice asD.as twice much as在线课程B

这题考查倍数的表达：倍数+as+形容词原级+as的用法，句意是：这两只钢笔一样，但红的价格是那个的两倍。选B。