这次考试不难，而且题目都学过。

Zhè cì kǎoshì bù nán, érqiě tímù dōu xué guo.

This exam is not difficult, and we have studied all the questions before.

他不仅学习认真，而且还经常帮助同学。

Tā bùjǐn xuéxí rènzhēn, érqiě hái jīngcháng bāngzhù tóngxué.

He not only studies diligently, but also often helps his classmates.