in the future i think cities will be crowded because there will be a lot more people.a lot 后面加名词不是必须要加of 吗,为什么这个没加
问题描述:
in the future i think cities will be crowded because there will be a lot more people.
a lot 后面加名词不是必须要加of 吗,为什么这个没加
答