don’t know 我知道 

I can’t speak English 我不懂英文 

Yes , Please 请 

Excuse me 劳驾 

I am sorry 对不起 

Could you do me a favor? 能够帮我忙吗？
 
Please say it again 请再说一次 

Anyway 总之 

Of course 当然 

By the way 顺便提一下 

if 如果，假设 

Besides 另外，况且 

Actually 实际上 

May I smoke here? 能在这里吸烟吗？ 

May I use this phone? 能够使用电话吗？

May I sit here? 能够坐在这里吗？

May I ask something? 我想问点事情 

Is there a police station here? 附近有警察局吗？
 
What time is it now? 现在几点了？ 

I am tired 我很累 

As soon as possible 近快--- 

Please help me 请帮助我 

I feel sick 我感觉不舒服 

I’m lost 我迷路了