1. put "true" if the sentence is right
and "false" if it is wrong.
1. toscanini came to a very little
town.
2. he liked how mrs. smith was
playing.
3. he wanted to play the piano for
her.
4. tchaikovsky visited mrs. smith
one day
5. mrs. smith was a teacher of music,​

What is air for a person? This, in my opinion, is all. After all, a person can live at least 7 minutes without air! Air fills every organism with life and not only human. Animals and plants also need air and development, and reproduction and distribution on our planet. And it is an incredible miracle that only one planet has this miracle of air – on the planet Earth! It is the air that makes this planet unique, suitable for life, and it is thanks to it that life has developed on this planet.But, unfortunately, sometimes you breathe in the air – and you don't feel the energy. Because the air is dirty. Through their activities, people pollute the earth's atmosphere and make the air harmful. Various large enterprises emit a huge amount of harmful substances directly into the air, which make the air uninhabitable. Every day, millions of cars emit tons of harmful metals into the air.Therefore our task is to preserve nature so that the air is clean

1.I have already tidied up my room
2.She has never eaten candy floss
3.He has just gone souvenir shopping
4.We have recently read this book
5.They have not travelled to Europe yet
II
1.Have they just arrived?
2.She hasn't packed her suitcase yet.
3.We have been to the camp for 2 weeks/.
4.Have you ever shaken hands with cartoon characters?
5.I have never seen a robot.
III 
1. I have already done my homework. (do) 
2. He has just come home. (come) 
3. She has already nade a calculation ( make). 
4. We have already solved the problem. (solve) 
5. He has just finished his work.(finish) 
6. They haven't come from the south yet . 
7. Have you ever eaten Italian food? (eat)
8. Have you done a lot of training this year? (do)