13.　　 They kept us ___________(wait) for them for two hours.

C. 句型转换：

12.　　 He had a big backpack ________(make) of silk.

11.　　 He said he _______(play football) at this time yesterday.

10.　　 We went home, _________(jump) and ________(laugh).

9.　　　　 Each of us _______(have) a new bike.

8.　　　　 The heavy snow stopped us from _________(go) out.

7.　　　　 My family has a cat _______(name) Mimi.

6.　　　　 It’s ________(danger). Don’t climb up.

5.　　　　 How many ________(country) are there in Asia?

4.　　　　 We can take some _______(photo) in the zoo.