3 sentences

1. 10天，这是最后期限。

   10 tiān, zhè shì zuì​hòu qī​xiàn.

   Ten days, that's the deadline.

   Source: OpenSubtitles

2. 最后期限是在黎明时分。

   zuì​hòu qī​xiàn shì zài lí​míng shí​fēn.

   The deadline is at dawn.

   Source: OpenSubtitles

3. 眼看最后期限快到了，他整天都表现得忧心悄悄。

   yǎn​kàn zuì​hòu qī​xiàn kuài dào le, tā zhěng​tiān dōu biǎo​xiàn de yōu​xīn qiāo​qiāo.

   Seeing the deadline fast approaching, he appeared deeply anxious all day long.

   Source: Dong Chinese Dictionary