大部分同学都已经交作业了。

Dàbùfen tóngxué dōu yǐjīng jiāo zuòyè le.

Most of the classmates have already handed in their homework.

周末的时候，大部分人喜欢在家休息。

Zhōumò de shíhou, dà bùfen rén xǐhuān zài jiā xiūxi.

On weekends, most people like to rest at home.

大部分同学已经来了。

Dà bùfen tóngxué yǐjīng lái le.

Most of the classmates have already arrived.