1.There are so many trees on___side of the road.

问题描述:

1.There are so many trees on___side of the road.
2.I saw a lot of trees on___side of the lake.
A.all B.both C.either D.every

第一题 答案C,一条路只有两边,either表示任意一边
第二题 答案D 湖有好几个边,所有使用every(用于三者及以上)那all,both各有什么意义呢?all 所有,三者以上;both 两者,之所以不选这两个,是因为side是单数every,all怎么区分呢?every side=all sides