我决定要努力把普通话学好。

Wǒ juédìng yào nǔlì bǎ Pǔtōnghuà xuéhǎo.

I decided to study hard to learn Chinese well.

我们要继续努力，不要那么容易就放弃。

Wǒmen yào jìxù nǔlì, búyào nàme róngyì jiù fàngqì.

We must continue to work hard and not give up so easily.

谢谢你给我这个工作机会，我会努力工作。

Xièxie nǐ gěi wǒ zhè gè gōngzuò jīhuì, wǒ huì nǔlì gōngzuò.

Thank you for giving me this opportunity. I will work hard!