why don't you speak English? 改为同意句 —— ——speak English?

why not

您好
why don't you speak English? 改为同意句
why not speak English?
因为wht don't you = why not

Why not speak English?

Why not spesk English?
翻译：为什么不说英语呢？

why not speak English?

我同意你的~呵呵 不大明白你的意思额…或者 Why not speak English? 不过好像还不如祈使句…