Write general questions: 1. they have logged on to the computer. 2. cara has seen red square. 3. mike has returned from the shops.

1. Have they logged on to the computer?
2. Has Cara seen (the) Red Square?
3. Has Mike returned from the shops?

Man is an integral part of nature. Nature and man are two concepts. Nature without man, man without nature is impossible to live. Man must respect nature. Nature is the blessing of life. Our duty to protect nature. Currently, the problem of ecology has worsened. Nature protection is in the hands of today's youth. The Kazakh people respect nature. There is a notion that man is the king of nature. Therefore, nature is a precious mother for man. Because human beings have grown and matured in the life of nature. Nature is a source of wealth, riches and riches, a reliable ring of human health. Modern pollution is a big problem. This is being considered all over the world. Although nature is an indescribable beauty, an invaluable treasure, an inexhaustible beauty, an indescribable phenomenon and a mystery, today it is deteriorating and polluting, creating a dangerous situation for human life. We need to take care of every tree in nature. "If you cut one willow, sow ten willows", "If the earth is blessed, the cattle will be milked" If this issue is not addressed, the environment will become polluted. I grew pine, spruce, poplar, etc. in my native land. I say plant trees. To withstand the effects of nature, we must protect the environment without polluting it.

1)  He doesn't work at a plant, he  works in a construction company.
2)  Did you see the last news program yesterday?
3)  If he helps us we will finish our project ahead of time.
4)  When will you come home tomorrow?
5)  He usually goes to bed very early because he takes an early bus to town.
6)   I applied a new method for my research work last year.
7)  They  built the Eiffel Tower in 1899.
8)  Water boils at 100C.
9)  Next year some new houses will appear in our street.
10)  Yesterday it took me 30 minutes to get to the centre of the town.

1)  The secretary was typing a letter when the manager phoned.
2)  She will be preparing for the exam the whole day tomorrow.
3)  It is 8 o’clock now. The people in the hall are waiting for the meeting to begin.
4)  Don’t be late! We are having lunch at 3 sharp.
5)  They were working at the laboratory while we were testing a new device yesterday.

1)  Listen! My favorite singer is singing now. I like this song very much.
2)  It is raining outside. Take an umbrella.
3)  He always passes exams in time.
4)  Where are the students?  They are writing a dictation.
5)   He studies English at the University.
6)   Are you looking out of the window now? Do you see if it is raining?
7)   The tourists are speaking too fast. I don't understand them.
8)   Where do you prefer to spend your summer holidays?
9)   Usually he wears a uniform but now he is wearing jeans.
10) Our library occupies modern building.

1)  The company went bankrupt last year.
2)  The man who is making a speech now is an outstanding writer.
3)  He usually reads before going to bed.
4)  We will graduate from the University in 5 years.
5)  What are you doing now?  I'm processing a still picture on my computer now.
6)  The laboratory bought computer hardware 3 years ago.
7)  It is very dark here. I don't see you well.
9)  At this time tomorrow our representative will be signing an agreement.
10)  He was making a chemical experiment when the teacher entered the hall.