1) Could you say that agein, please?
2)will show your passport, please? (хотя не уверен, что так говорят вообще, проще использовать конструкцию could..)
3)can we use your car, please?
4) May i enter the classroom?
5)coud your to be quiet, please?
6)would you halp me with these heavy boxes, please?
7)will you speak lounder, please?
8)can you give me a lift after work?
9)could you give me another beer, please?
10)May i leave work early today?