Read these sentences and rewrite them into the ones with 'may' or 'might' (into the correct form). Don’t forget about full stops.

1. Perhaps Sam will buy a new computer. (may)

2. Perhaps the children won't have a holiday next summer. (may)

3. Perhaps Sandy will be late. (may)

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They had much trouble with their engine
had – past simple от глагола ( to have)
У них было много проблем с двигателем.
This is the agenda of our meeting.
is - Present simple oт глагола ( be )
Это повестка дня нашего собрания.
The contract will be ready next Monday
will be - future simple от глагола (to be)
Контракт будет готов в следующий понедельник
Our chief engineer has just signed this declaration of inspection.
has signed – present perfect от ( sign)
Наш старший механик только что подписал отчет инспекции.
Who is repairing this equipment?
is repairing - Present Continuous oт repair
Кто ремонтирует это оборудование?
2. Поставьте предложения в вопросительную и отрицательную формы
My friend is a chief engineer of the passenger liner.
My friend is not a chief engineer of the passenger liner.
Is my friend a chief engineer of the passenger liner?
The dockers are unloading the cargo.
The dockers are not unloading the cargo.
Are the dockers unloading the cargo?
There are some freezing holds in this ship.
Are there any freezing holds in this ship?
There are not any freezing holds in this ship.
Our ship carried much fuel oil last voyage.
Our ship did not carry not much fuel oil last voyage.
Did our ship carry much fuel oil last voyage?
He will repair this winch in five days.
He will not repair this winch in five days.
Will he repair this winch in five days?

1.The boiling point will be determined after the experiment begins in half an hour.
2.The substance was being dissolved in nitric acid when the professor came in.
3.By the end of the next experiment the volume of liquid will have been measured in a graduated cylinder.
4.The result of the reaction of sulphuric acid with potassium hasn't been obtained yet.
5.Many experiments were carried out by pharmaceutical students yesterday.
6.By the end of our practice many medicinal plants will have been collected at the botanical stations.
9.Pharmacy is defined as the science of recognizing, identifying, selecting, preparing and compounding substances.
10. Some preparations which were known to primitive men are known in a modified form.
11. It is known that morphine was isolated from opium by 1906.
12. He said that the room had been ventilated for two hours before the class began.
№7 и 8 дублируют №5 и 6.