Adressing your teacher

Give me that book
1. Could you give me that book, please?
2. I need this book. Give it to me now!
Explain this exercise
1. Could you explain this exercise, please?
2. Explain this now. I don't understand
Repeat that
1. Say it again!
2. Could you repeat that, please?
Help me
1. Could you help me please?
2. Help me now
I don't understand
1. Sorry, I don't understand. Cold you explain again, please?
2. This is too hard. I don't get it
Check my work
1. Check this
2. Could you check my work, please?
Open the window
1. Could I open the window, please
2. It's hot in there. Open the window
I am late
1. I'm late. I'm coming in.
2. Sorry I am late. May I come in, please?
I forgot my homework
1. Sorry, I forgot my homework
2. I didn't do my homework
I need a pen
1. Could I borrow a pen, please
2. I need a pen. Give me one