1. The man(carry) the box inside.
2. We(watch) the film.
3.I(study) for the exam.
4.The baby(cry) all night.
5. The postman(find) the address.
6) My parents(stay) at home.
7. The cook(cook) two eggs.
8.The librarian(collect) the books.9.
She(play) tennis for three hours.
10.The wind(dry) the clothes.

Until recently the planet was a world in which nature was in balance. People lived in harmony with nature and not pollute it. But at present, environmental problems are most acute for modern society.many factors affect this.People cut down trees, pollute the water in rivers and seas. The increasing number of cars in cities has led to a rise in carbon dioxide levels in the atmosphere. many rare animals and plants disappear. The problem is now so serious that they need to be addressed without delay. So I walked into the urban environmental group that helps to keep our city cleaner and more beautiful. We must take care where we live because we can change the world and make it better!

I believe that we must protect the planet!
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When did she choose to take a course in com-
puting?
G. B. shaw wrote a lot of plays.
The applicants were happy to hear that they had passed the centralized test successfully.
Have you met anyone interesting at the reception?
Mr. Billboard had been thinking his decision over during the lunch break.
Who was driving the car at the time of the accident?
When I was searching for the documents, I suddenly remembered I had left them in my briefcase at home.
Because he hadn't checked the oil for so long. the car broke down.
When i arrived at the office Ms Flick was waiting for me.
10. While I was having lunch I was looking through the financial newspapers and saw that the company's investments had grown by 10%