他上课的时候总是很仔细地盯着老师看。

He watches the teacher carefully in class.

youdao

他上课的时候，他通常都是不需要课本的。

When he has class, he usually doesn't need any book.

youdao

他总是在上课的时候睡觉。

He always sleeps in the class.

youdao

每当我们上课累了的时候，他就教我们唱一些英文歌曲。

When we feel tired in the class, he will teach us some English songs.

youdao

郝伯特小的时候，他常常上课做鬼脸。

When Herbert was young, he often made a face at class.

youdao

他的老师今天打电话过来。她说吉姆这些天上课的时候经常睡觉。

His teacher called today. She said Jim often fell asleep in class these days.

youdao

上课的时候他睡着了。

During the lesson he fell asleep.

youdao

我认为他不应该在上课的时候睡觉。

I don't think he should sleep in class.

youdao

还没病到很严重的时候，他还是会来上课，可是他的脖子很肿，也不能大声说话。

He still came to school still he could not. his neck was much swollen , he could only speak to us with small voice.

youdao

还没病到很严重的时候，他还是会来上课，可是他的脖子很肿，也不能大声说话。

He still came to school still he could not. his neck was much swollen , he could only speak to us with small voice.

youdao