我和他是初中同学，现在还是好朋友。

Wǒ hé tā shì chūzhōng tóngxué, xiànzài háishì hǎo péngyou.

He and I were middle school classmates and we are still good friends now.

他从初中起就对科学很感兴趣。

Tā cóng chūzhōng qǐ jiù duì kēxué hěn gǎn xìngqù.

He has been very interested in science since middle school.

她从初中开始就喜欢画画。

Tā cóng chūzhōng kāishǐ jiù xǐhuān huàhuà.

She has liked drawing since middle school.