9 sentences

1. 上床睡觉之前请关灯。

   shàng chuáng shuì jiào zhī​qián qǐng guān dēng.

   Please turn off the light before you go to bed.

   Source: Tatoeba

2. 离开房间时，一定要关灯。

   lí kāi fáng​jiān shí, yī​dìng​yào guān dēng.

   Be sure to turn off the lights when you leave the room.

   Source: UM-Corpus: Education

3. 所以也许我们应该关灯。

   suǒ​yǐ yě​xǔ wǒ​men yīng​gāi guān dēng.

   So, maybe we should turn off the lights.

   Source: OpenSubtitles

4. 关了灯，闭上眼睛。

   guān le dēng, bì shang yǎn​jing.

   Turn off the lights and close your eyes.

   Source: CCMatrix

5. 我们关了灯，假装没有人在家。

   wǒ​men guān le dēng, jiǎ​zhuāng méi​yǒu rén zài jiā.

   We turned off the lights and pretended we weren’t home.

   Source: CCMatrix

6. 我可以关灯吗？

   wǒ kě​yǐ guān dēng ma?

   Can I turn off the lights?

   Source: CCMatrix

7. 离开房间时关灯，即使仅仅离开几分钟。

   lí kāi fáng​jiān shí guān dēng, jí​shǐ jǐn​jǐn lí kāi jǐ fēn​zhōng.

   When you leave a room, turn the light off, even if it's just for a few minutes.

   Source: CCMatrix

8. 当你关灯或少用水时，请记住你为什么这样做。

   dāng nǐ guān dēng huò shǎo yòng shuǐ shí, qǐng jì zhu nǐ wèi​shén​me zhè​yàng zuò.

   When you turn off the lights or use less water, remember why you are doing so.

   Source: CCMatrix

9. 如果你关灯的话，怪物就会从我床底下出来的。

   rú​guǒ nǐ guān dēng de​huà, guài​wu jiù huì cóng wǒ chuáng dǐ​xia chū lai de.

   If you turn off the lights, the monster will come out from underneath my bed.

   Source: UM-Corpus: Education