A.It‘s very small. B.It‘s very crowded. C.It‘s a cheap one. D.Yes, there is a big one.
A.What‘s in it? B.Can I help you to carry it. C.Whose is it? D.May I have a try.
A.Oh dear! I hope he wasn‘t hurt B.Oh, no. A lucky boy. C.He might have broken his arm. D.Nothing serious.