3.黑白相间       

2. This sweater is cheaper than that one. (改为同义句) 

That sweater is         than this one.

1. Mike's hair is 5 cm long. Jack's hair is 6 cm long. (合并为一句) 

Mike's hair is              .

(   ) 5. Don't give up         your dreams.

   A. to try to achieve

   B. to trying to achieve

   C. trying to achieve

   D. to try achieving

(   ) 4. Nanjing isn't so large        Shanghai, however,it's the second         city in East China.

   A. like;largest   B. as;largest

   C. like;large   D. as;large

(   ) 3. China is developing         of all the countries in the world.

   A. fast   B. faster

   C. fastest   D. the most fast

(   ) 2. ― Why don't you like winter in Beijing?

      ―Because it is         the winter in Guangzhou.

   A. as cold as

   B. much colder than

   C. not so cold as

   D. not colder than

5. Yunnan Province is in the       (southwestern) of China.

4. I like many sports,        (include) mountain climbing,skating and skiing.

3. This classroom is the        (wide) one of all.