math为什么有时加s?
maths homework为什么math加s?math homework对吗?
1.Math lessons ,lesson为什么加s?
The maths problem is too difficult.math为什么加s
fall in maths.math为什么要加s
为什么有时在单词后加s‘或's?
vegetable到底是可数还是不可数 为什么有时加s有时不加 还有fruit也是
腿疼用英语怎么说为什么hurt有时加s,有时不加s.我腿疼和背疼加不加s
形容词为什么有时加ly,有时却不加?
He must try to help his sister with her math?为什么try不加s
I think maths is important than english.为什么math加S
请问:Can you work out this maths problem 为什么math要加s?
math什么情况下加s