what ______ another time?
问题描述：
what ______ another time?
There are many trees _____ both sides of the street.
为什么填?其中有固定搭配?
The hole should be big enough ______ a tree.
答
1.about
what about 是固定搭配.问的是：……怎么样?
2.on
on both sides of 短语：在.的两旁
补充题：The hole should be big enough 【for】 a tree.表示目的