为你提供五句正确的英文：
I tried to speak in English when I talked to the English visitor.
We usually speak in Chinese or our home dialect when when speak to our family.
Our teacher always speaks formal Chinese when she teaches us in class.
My baby brother is learning to speak whatever language he can when he wants to yell at anyone.
I do hope I will be able to speak fluently English when I talk to you upon my graduation.