Change the sentences according to the directions: 

Everybody wants to make a good result in the examination. (Interrogative Sentence) = Who doesn't want to make a good result in the examination? 

It is not an easy task. (Affirmative Sentence) = It is a difficult task. 

Being industrious, every student can make a good result. (Negative Sentence) = Without being industrious, no student can make a good result. 

The idle always lag behind. (Complex Sentence) = Those who are idle always lag behind. 

They must work hard so that they can prosper in life. (Simple Sentence) = They must work hard to prosper in life. 

Girls can work as much as boys. (Comparative Degree) = Girls cannot work less than boys. 

Students should also observe the rules of health. (Passive Voice) = The rules of health should also be observed by students. 

An idle student leads a very miserable life. (Exclamatory Sentence) = What a miserable life an idle student leads! 

The light of prosperity can be seen by a hard working person. (Active Voice) = A hard working person can see the light of prosperity. 

By working hard, you can also change your condition. (Compound Sentence) = Work hard and you can change your condition.