1. your English is incredible.我真不敢相信你的英语这么好啊
2. your son/daughter is so cute.你的孩子很可爱。
3. your chinese is really surprising.你的中文令人惊讶。
4. what an adorable baby! 多么可爱的孩子.
5. you're looking sharp! 你看上去真精神/真棒/真漂亮.
6. I envy you very much.我非常羡慕你。
7. you've got a great personality.你的个性很好。
8. you look outstanding.=you look like a movie star.你看上去帅呆了。
9. we're so proud of you.我们十分为你骄傲.
10. i'm very pleased with your work.我对你的工作非常满意.