3 sentences

1. 警察正在讯问犯罪嫌疑人。

   jǐng​chá zhèng​zài xùn wèn fàn​zuì xián​yí​rén.

   The police are interrogating the suspect.

   Source: Dong Chinese Dictionary

2. 据新华社北京讯，第二届论坛于今日正式开幕。

   jù Xīn​huá​shè Běi​jīng xùn, dì'èr jiè lùn​tán yú jīn​rì zhèng​shì kāi​mù.

   According to a Xinhua News Agency report from Beijing, the second forum officially opened today.

   Source: Dong Chinese Dictionary

3. 有关部门正在核讯该起事故发生的具体原因。

   yǒu​guān bù​mén zhèng​zài hé xùn gāi qǐ shì​gù fā​shēng de jù​tǐ yuán​yīn.

   The relevant departments are investigating the specific cause of the accident.

   Source: Dong Chinese Dictionary