The boy didn't run___to catch up with his classmateA.fast enough B.enough fast C.quick enough D.enough quickly
问题描述：
The boy didn't run___to catch up with his classmate
A.fast enough B.enough fast C.quick enough D.enough quickly
答
a
答
A
形容词/副词 + enough
enough + 名词
run动词用副词修饰