— Look at the slim lady in red. Is that your English teacher?— No, it ___________ be her. She has gone to England.
—Please don’t _______, Tommy. Your sister is sleeping now. —OK, mom.
Tony is ______ lazy, and he is not good at learning English.
—What is he doing now? —He’s ________ the teacher in class now.
The trees in the school are good for our health. So please don’t ________.
We are so tired(累) these days because we have ________ homework .