4 sentences

1. 他正在清扫自己的屋。

   tā zhèng​zài qīng​sǎo zì​jǐ de wū.

   He is cleaning his room.

   Source: Dong Chinese Dictionary

2. 春节前，全家人都在忙着清扫房屋。

   Chūn​jié qián, quán jiā​rén dōu zài máng zhe qīng​sǎo fáng​wū.

   Before the Spring Festival, the whole family is busy cleaning the house.

   Source: Dong Chinese Dictionary

3. 城市的清洁工每天天没亮就开始清扫街道。

   chéng​shì de qīng​jié​gōng měi tiān tiān méi liàng jiù kāi​shǐ qīng​sǎo jiē​dào.

   The city's street sweepers start cleaning the streets every day before dawn.

   Source: Dong Chinese Dictionary

4. 为了维护治安，警方开始在这一地区清扫黑恶势力。

   wèi​le wéi​hù zhì'ān, jǐng​fāng kāi​shǐ zài zhè yī dì​qū qīng​sǎo hēi'è​shì​lì.

   To maintain public order, the police began to sweep away criminal gangs in this area.

   Source: Dong Chinese Dictionary