"I am sick. I can't attend your party."

Translation: 我生病了，不能参加你的派对。

[fourthwall1]

There wasn't an option for "unnatural chinese sentence" so i just wanted to mention here that this sounds like a very weird way to talk. If a non native speaker said it, sure fine. (It is understandable) If a native speaker talks like that i might check for a zip if he/she is wearing a human skin suit.

[Kissilk]

Why is it unnatural?

[IAmOnYourSide]

我生病了，不能参加你的派对了。 would be a step towards a more natural sounding sentence.

[wowineedashit]

That 了 at the end sounds even more unnatural. Personally, i think the answer is fine as it is, but

[ArkzHD]

How was 我生病，不能參加你個派對 not accepted?!

[Caleb25118]

I answered correctly. The 了 isn't necessary

[e1VpVxkl]

她病了, 所以吃得很少. ( tā bìng le, suǒ yǐ chī de hěn shǎo. ) = Rejected by DL: 23 jan. 2020. I reported it!