do moring exercises 和 do some exercise 为什么一个加s 一个不加
do moring exercises 和 do some exercise 为什么一个加s 一个不加
为什么moring exercises中exercise要加s?
to do some exercise 为什么exercise 后面不加S啊
I will do more exercise every day为什么exercise不加s?
do exercise 加s么?
do exercise什么时候加s?
Does tom do morning exercises every day?exercise后面为何加s?
do some interview怎么翻译?interview为什么不加s?
We want some fruit.和 He can eat fruits.为什么一个加S一个不加?
do morning exercises的exercises必须加s吗
do some exercise,为什么不想do some cleanning那样加ING
do exercise 和do exercises的区别