题目内容：

句型转换

1.You need to know every word to understand the article. (改为否定句)

You __________ __________ to know every word to understand the article.

2.Why don’t we go sightseeing during this summer holiday? (改为同义句)

__________ __________ go sightseeing during this summer holiday?

3.The population of Hefei is about four million. (对划线部分提问)

__________ __________ the population of Hefei?

4.He was late for school because the traffic was heavy. (改为同义句)

He was late for school __________ __________ the heavy traffic.

5.Daming is the tallest boy in his class. (改为同义句)

Daming is taller than  __________ __________ boy in his class.