Commands and requests

1. Come home straight after school.

2. Warm up your dinner.

3. Don’t stay outside after the bell comes.

4. Don’t run along the corridor.

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It is no doubt that mankind history is full of important and significant events and inventions. To my mind, one of the most important inventions is penicillin. A scientist named Alexander Fleming was doing research at Hospital in London and he was looking for something to fight bacterial infections. Use of penicillin did not begin at once. Howard Florey and Ernst Chain isolated the active ingredient and developed a powdery form of the medicine. So they were able to make enough penicillin to establish it as a value drug. The world now had a valuable treatment that would save the lives of millions. Penicillin today is a very important prescription drug. It is very effective against fungi, parasites and bacteria.

1. Let’s run over that dance sequence just one more time.

2. Sharon thought David was out of town, but she ran into him at the cinema.

3. The book is about a young boy who runs away from home.

4. We’ve run out of sugar – I’ll go and buy some.

5. I hope we won’t run out of petrol before we get home!

6. I ran into Eddie in the supermarket yesterday.

7. The robber tried to run away from the police but he didn’t manage to.

8. My cat got run over by a car yesterday.

9. We’ve run out of petrol. We need to find a petrol station.

10. A lot of cars in Russia run on natural gas.

11. Guess what? I ran into Ivan at the library today.

12. I saw a thief running away from the police in town last night.

13. I ran into my English teacher at the shopping mall.

14. Electric automobiles run on electricity.

15. The car ran out of petrol.

16. I’d like to run over the song one more time.

17. The time for the test is running out.

18. He ran after the car trying to stop it.

19. I ran across my old friend at the cinema.