—Listen! Peter is singing in the classroom!—It _____ be him. He has gone back to his hometown.
--- Do you know how to get to the nearest post office ? --- _______________________
--- How was your weekend ?--- ___________________
. --- Do you mind if I open the window ? It’s hot in here. --- ______________________
Peter doesn’t tell me when he ____________. I’ll telephone you as soon as he ____________.
My brother often forgets _________ the windows, but he remembered __________ them when he left yesterday.