正在上课 be in a class（或be in classes）。

这句话你可以说成 I am attending an English class。

扩展资料

He was often in a trance in class.

他常在课堂上打愣儿。

In primary schools, a class hour has45 minutes ( or a period is45 minutes long).

小学一学时四十五分钟。

Learning a foreign language doesn't mean just working in a class.

学习外语不意味着只在教室里学习。

You love learning new things, whether in a class or on your own.

你喜欢学习新知识，不管是课上还是课外。