—Hey, Jack. Waste paper ________ here.—Sorry, I won’t do that again.
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
You will lose the game _________ you try your best.A. when B. if C. unless