扫描二维码，直接登录
题库 / Prep2007E2-SC-131
Today's technology allows manufacturers to make small cars more fuel-efficient now than at any time in their production history.
small cars more fuel-efficient now than at any time in their
small cars that are more fuel-efficient than they were at any time in their
small cars that are more fuel-efficient than those at any other time in
more fuel-efficient small cars than those at any other time in their
more fuel-efficient small cars now than at any time in
请看讲解视频
I'm going to make air conditioners quieter. --> I'm going to modify existing air conditioners so that they make less noise.
I'm going to make quieter air conditioners.
I'm going to make air conditioners that are quieter.
--> I'm going to make a new model that makes less noise.
A is like the first one of these, so it doesn't make sense in context.
登录 或 注册 后可以参加讨论