Chinese people don't like pinyin much, at least writing it out, so I'll do my best to help you. These should be fairly accurate, I'm fairly proficient in Chinese.
1. Hey. Ni3 hao3.
2. What's up? Ni3 zen3me yang4?
3. How are you? Ni3 zui4jin4 guo4 de zen3me yang4? OR Ni3 hao3 ma?
4. Where do you want to go? Ni3 yao4 qu4 na3'er/na3li3?
5. Are you hungry? Ni3 de du4zi e4 le ma?
6. Do you want something to drink? Ni3 yao4 shen2me he1 de?
7. What do you want to do? Ni3 xian4zai4 yao4 gan4/zuo4 shen2me?
8. How far is that? Na4'er/na4li3 you3 duo1 yuan3?
9. Did you work today? Ni3 jin1tian1 shang4 ban1 le ma?
10. How was work? Gong1zuo4 guo4 de zen3me yang4?
11. Do you need anything? (weird to translate) Ni3 yao4 shen2me? (What do you want?)
12. It's beautiful today isn't it? Tian1Qi4 duo1/hen3 hao3 a!
13. Do you like...? Ni3 xi3 huan1 .... ma?
14. I'll get it. ( weird to translate) Wo3 hui4 bang1 ni3. (I'll help you)
15. Do you live nearby? Ni3 zhu4 zai4 zhe4'er/zhe4li3 de fu4jin4 ma?