key words：
1.hot—cold（字母o的基础音和名称音）
2.young—old（old，cold看看相似之处）
3.day—night
4.black —white（ck组合）
5.high—low
6.fast—slow（low，slow）
7.wet—dry
8.gal—guy
9.king—queen（ee组合）
10.clean—dirty（ea，ir组合）
11.nice—mean

28'

1.The long dog

6'

2.Calling all dogs！

6'

3.This is a hot dog. This is a cold dog.

7'

4.This is a young dog. This is an old dog. And here comes a long dog.

8'

5.This is a day dog.This is a night dog.

5'

6.This is a black dog.This is a white dog. And this is that long dog.

8'

7.This is a high dog.This is a low dog.

5'

8.This is a fast dog.This is a slow dog. This is still one long dog.

8'

9.This is a wet dog.This is a dry dog.

5'

10.This is a gal dog.This is a guy dog.

4'

11.How long is this dog？

3'

12.This is a king dog. This is a queen dog.

5'

13.This is a dirty dog. This is a clean dog.

5'

14.This is a nice dog.This is a mean dog.And there goes that long dog.

8'

15.Can you say so long，dogs？

3'

16.So long！

2'

The end🔚！