Dale’s books are the floor(地板).A. in B. under C. on
--- I’m sorry I ____ my homework at home. --- That’s all right. Don’t forget ____ it to school this afternoon.
The flowers ________ every day, or they will die.
--- Jack, you look tired today. What’s wrong? --- I was ____ busy ____ I didn’t go to bed until midnight yesterday.
Stop _____ ! I’ll tell you an interesting story.
_____ Chinese are learning English for a better future.