How many lessons do you have today?

今天你们有多少节课？

We have six.

我们有六节(课)。

How many lessons do you have in the morning?

上午你们有多少节课？

We have four.

我们有四节(课)。

What are they?

它们是什么？

They are maths, Chinese, English and PE.

它们是数学、中文、英语和体育。