You can't believe how fast my English improve.这句话对吗?
问题描述：
You can't believe how fast my English improve.这句话对吗?
还是这句话?You can't believe how fastly my English improve.
Why?
And,can you tell me how to use "how" in 从句?
答
应该是被动语态：You can't believe how fast my English is improved.或者You can't believe how fast I improved my English.