What do you do when it _____? --- I often stay at home and read books.
—Are we going on a field trip to Minghu Lake by bus?— Yes, but the teacher didn’t say _________.A. where to go B. when to go C. how to go
I _______ go to school on foot, because my home is next to the school.A. always B. seldom C. never
— I have great _______ in learning math and I'm so worried. Could you help me?— Sure. I'd be glad to.A. trouble B. interest C. fun
—Did you see the traffic accident on East Street this morning?— Yes, I _________ shopping with my friend Tina at the time.A. have gone B. am going C. was going
You _______move to the next room. You may still stay here if you like.A. must B. needn’t C. can’t