4 sentences

1. 他这个人很实在，从不弄虚作假。

   tā zhè gè rén hěn shí​zài, cóng bù nòng​xū​zuò​jiǎ.

   He is a very honest person who never resorts to trickery.

   Source: Dong Chinese Dictionary

2. 绝不允许在科研数据上弄虚作假。

   jué bù yǔn​xǔ zài kē​yán shù​jù shàng nòng​xū​zuò​jiǎ.

   Falsifying scientific research data is strictly prohibited.

   Source: Dong Chinese Dictionary

3. 他经营的是正派生意，从不弄虚作假。

   tā jīng​yíng de shì zhèng​pài shēng​yi, cóng bù nòng​xū​zuò​jiǎ.

   He runs a legitimate business and never engages in deception.

   Source: Dong Chinese Dictionary

4. 这种弄虚作假的歪风，必须坚决予以制止。

   zhè zhǒng nòng​xū​zuò​jiǎ de wāi fēng, bì​xū jiān​jué yǔ​yǐ zhì​zhǐ.

   This unhealthy trend of fraud must be resolutely stopped.

   Source: Dong Chinese Dictionary