as...as比较结构 — 英语填空题
题目
用as...as结构的适当形式填空：Tom's new robot costs twice as ___ (much) as Amy's, and it works not nearly as ___ (quickly) as the old one. So we can say: Amy's robot is half as ___ (expensive) as Tom's, and the old robot works more ___ (quick) than the new one.