Thank you for sharing
yeah only the teacher who tends to asy all the above mentioned expressions
there're surely other students's expressions too
such: can i open the door, the window
switch on/off the light
can i look for another blue pen?
can i go and search for a book?
excuse me but can you explain it once again?
sorry, i didn't understand the last point, can you explain it again?
surely( in case the teacher asks you to give your book to your classmate because he hasn't one)
To be continued