听句子，标序号。

(　　)They are birds．

(　　)There are six birds．

(　　)What are they?

(　　)They are yellow birds．

(　　)How many birds are there？

将下面对话排成通顺的一段话。

(　　)How are you?

(　　)Good afternoon, Mr Green．

(　　)Go home now, David．

(　　)Fine, thank you．And you?

(　　)Good afternoon, David．

(　　)OK．See you, Mr Green．

(　　)I’m fine, too．Thank you．

(　　)See you．