Classroom Language, English Classroom Phrases May I go out please? Is this right? Is this correct? I am sorry. I did not hear. Can you speak louder, please? Which book? Can you explain that again? Whe is the exam? When is the homework for? I have done this. Can I go to the board? Can I come in? Can I pull up the blinds? Can I pulldown the blinds? Can you help me, please? Can I go out? Can I open the window? Can we pack our things now? May I join the class/group? Can you explain it once