问题描述:
A big factory has been set up in this area ___ such goods for people all over the country
a.to produce b.producing c.produced d.being produced
选B 为什么用V-ING形式呢?
a.to produce b.producing c.produced d.being produced
选B 为什么用V-ING形式呢?
问题解答:
我来补答展开全文阅读