最近太忙，睡眠不够，要找时间补一补觉。

Zuìjìn tài máng, shuìmián bùgòu, yào zhǎo shíjiān bǔ yì bǔ jiào.

Lately I’ve been too busy and haven’t had enough sleep; I need to find time to catch up on sleep.

你生病没来上课，可以下周来补考。

Nǐ shēngbìng méi lái shàngkè, kěyǐ xiàzhōu lái bǔkǎo.

You were sick and didn’t come to class, so you can take a make-up exam next week.

你可以多吃一点水果，补充维生素。

Nǐ kěyǐ duō chī yìdiǎn shuǐguǒ, bǔchōng wéishēngsù.

You can eat more fruit to supplement vitamins.