I speak English in class.

我在课堂上一直都讲英语。

youdao

Try to follow me when I speak English in class.

在课上，我说英语时，你要努力跟上我。

youdao

I speak English in the public place for the first time. but it made me to have self-confidence.

在公众场合用英语发言，我还是第一次，但它令我更有自信。

youdao

I know you can say it easily. I know you can speak well and write well in English. Keep it up!

相信你很快就能掌握的。你的口语跟写作都会很棒的。再接再厉！

I'd better 课堂 - SpeakingMax英语口语达人

and I can speak to him in English.

跟他说英语。

必须掌握两门语言 - SpeakingMax英语口语达人

"I talk Spanish at home, except with my brothers, with them I speak English, " says Adriana, a teenager at Bell High School in East Los Angeles, California.

BBC: Life in Spanglish for California's young Latinos