5 Rewrite the sentences using the modals could, must, ought to, can't, needn't.
It's not necessary for you to join the charity - you can still make a donation.
You
2
I'm sure he isn't at school today - he has an appointment with the doctor.
He
It's a good idea to get plenty of sleep the night before an exam.
You
3
4
She was able to read when she was four years old.
She
We are obliged to help people in need - it's our duty.
5

The children went to London. The Tour started at Hyde Park in themorning. The children fed the ducks and squirrels there. Then they took photos of Trafalgar Square. The next stop was the British Museum. They also visited the Tower of London. The children listened to the famous bell Big Ben. In the evening they were very tired.

 One day the children were on the ship. The sea was quiet. Suddenly they saw the pirates' ship. The pirates caught the children and put them in a dark room, but Kevin helped Steve and Maggie. In the room the children found the eighth magic pearl. Kevin put the eight pearls together and saved the Shell Kingdom. Kevin's parents were very happy.
My uncle is a zookeeper. Yesterday he came up to all the cages, opened them, talked to the animals, washed some of the animals, gave them food, cleaned the cages, brought water for the animals, closed the cages. That was his usual day.

The children went to London. The Tour started at Hyde Park in themorning. The children fed the ducks and squirrels there. Then they took photos of Trafalgar Square. The next stop was the British Museum. They also visited the Tower of London. The children listened to the famous bell Big Ben. In the evening they were very tired.

 One day the children were on the ship. The sea was quiet. Suddenly they saw the pirates' ship. The pirates caught the children and put them in a dark room, but Kevin helped Steve and Maggie. In the room the children found the eighth magic pearl. Kevin put the eight pearls together and saved the Shell Kingdom. Kevin's parents were very happy.
My uncle is a zookeeper. Yesterday he came up to all the cages, opened them, talked to the animals, washed some of the animals, gave them food, cleaned the cages, brought water for the animals, closed the cages. That was his usual day.