一半的学生喜欢数学课。

Half of the students like math class.

我们昨天看了一部电影的半部分。

We watched half of a movie yesterday.

她每天吃早餐用了一半的时间。

She spends half of her day eating breakfast.

会议在七点半开始。

The meeting started at half past seven.

现在是八点半吗？

Is it half past eight？