⑴This is the cat's house.   A.我们很抱歉。

⑵This is your book.           B.这是小猫的房子。

⑶Be careful!                      C.这是你的书。

⑷I can see a toy horse.     D.小心!

⑸We are very sorry.          E.我能看见一个玩具马。

⑴This is your red pen.      A. I've got a headache.

⑵What's that?                   B. That's my ball.

⑶Is it Sam's book?             C. No, he hasn't.

⑷Has he got a pen?           D. Thank you.

⑸Are you OK?                    E. Yes, it is.