场景口语：服务员来收空盘子

需要帮您收一下盘子吗?/清理一下桌子吗?

1) May I take your plate? 我可以把这个盘子收走吗?

2) Are you done with your plate? 您这个吃完了吗?

3)  Would you like me to take away your plates? 您需要我把这些盘子收走吗?

4) May I clear your table? 需要帮您清理一下餐桌吗?

需要, 谢谢!

1) Yes, please. 

2) Yes, please go ahead.

3) Yes, that would be great.

4) Of course, thank you for asking.

5) Yes, thank you very much. We're all finished.

不用, 我们还没吃完呢.

1) No, thank you. We're not finished yet.

2) Please wait a bit longer. We're still eating.

能帮我们收一下桌子吗?

1) Can you help me clear the table now, please?

2) Excuse me, could you please clear the table when you have a moment? 

随便选一个放心大胆的说, 意思表达清楚、简洁礼貌就可以了. 口语不是科学研究, 不用在说之前想太多.  说出来,别人听懂了就是“对”的.