Jim doesn't run as fast as Linda.还是 Jim doesn't run as fast as Linda does.
问题描述：
Jim doesn't run as fast as Linda.还是 Jim doesn't run as fast as Linda does.
答
两个都对!
第一句是简单句
第二句是复合句,as Linda does 作方式状语从句
如“你和我一样大”有三种说法：
You're as old as i
You're as old as me
You're as old as i am.