Exercícios resolvidos

1. ENGLISH C1 SESSION 4
GRAMMAR EXERCISES
Put the sentences in the Passive
1- Students should study environment problems at school.
Enviroment problems should be studied by students at school.
2- The teacher could include this topic in their classes.
This topic could be included by the teacher in their classes.
3- Some people buy returnable bottles and use recycle paper.
Returnable bottles are bought and recycle paper is used.
4- Governments have constantly ignored important issues on economic reasons.
Important issues on economic reasons have constantly been ignored by
governments.
5- At school teachers advise students about pollution and its prevention.
Students are advised at school by teachers about pollution and its prevention.
Students are advised about pollution and its prevention by teachers at school.
Students are advised by teachers at school about pollution and its prevention.
At school students are advised about pollution and its prevention by teachers.
6- In developed countries, authorities will lead everybody to cooperate.
In developed countries everybody will be led to cooperate by authorities.
7- Everybody should throw their bottles into recycling bottle banks.
Bottles should be thrown by everyone into recycling banks.
8- Parents must teach their children what to do about rubbish.
What to do about rubbish must be taught to children by their parents.
Children must be taught about what to do about rubbish by their parents.
9- Last year several nations held a meeting to discuss environmental problems.
A meeting to discuss environmental problems was held last year by several nations.
10- Organizations like Greenpeace are giving people leaflets about what to do.
Leaflets about what to do are being given to people by organizations like
Greenpeace.
Leaflets about what to do are being given by organizations like Greenpeace.
11- Mothers should teach children not to throw litter in the street.

2. Children should be taught by mothers not to throw litter in the street.
Children should be taught not to throw litter in the street by mothers.
12- Consumers could buy recipients instead of throwing away ones.
Recipients could be bought by consumers instead of being thrown away.
13- In developed countries people are recycling glass, paper, metal and even plastic.
Glass, metal and even plastic are being recycled in developed countries.
In developed countries glass, metal and even plastic are being recycled.
14- In underdeveloped countries everyone wastes and throws away useful objects.
Useful objects are wasted and thrown away in underdeveloped countries.
15- Everybody should pass their bottles when they no longer use them.
Bottles should be passed when they are no longer used.
Write affirmative, negative or questions using the Present Perfect
1- I (speak) to the boss
I have spoken to the boss.
I have not spoken to the boss.
Have I spoken to the boss?
2- They (eat) anything
They have eaten anything.
They haven’t eaten anything. They haven’t eaten nothing.X
Have they eaten anything?
3- She (forget) my address
She has forgotten my address.
She has not forgotten my address.
Has she forgotten my address?
4- I (make) a mistake
I have made a mistake.
Have I made a mistake?
I haven’t made a mistake.
5- You (shut) the door
You have shut the door.
You have not shut the door.
Have you shut the door?
6- Alan (work) very hard
Alan has worked very hard.
Alan hasn’t worked very hard.
Has Alan worked very hard?
7- I (hear) from Mary

3. I have heard from Mary.
I haven’t heard from Mary.
Have you/I heard from Mary?
8- John (learn) anything
John has learned anything.
John hasn’t learned anything.
Has John learned anything?