89. Give the meaning of this word: “eating outside”. a) eating at home

b) eating at the living room

c) calling guests

d) having party at home

e) instead of eating at home

90. Complete the sentence: People often take their … to a park or a beach, and sit on the grass or the sand for picnic.

a) charge

b) car

c) own food

d) cup

e) wallet

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Have to или to be to. 1. She had to send a telegram because it was too late to send a letter. 2. They decided that she was to send them a telegram every tenth day. 3. You have to learn all the new words for the next lesson. 4. Do you know this man? He has to be our new teacher of history. 5. Who was to go to the library to get the new books? — I was, but I couldn't because I had to finish some work at the phonetic' laboratory. 6. It is raining. You have to put on your raincoat. 7. "The patient is to stay in bed for a few days," ordered the doctor. 8. The child had stomach trouble and had to take castor oil. 9. I told her she has to open the window for a while every day. 10. The agreement was that if Johnny White could not repay the money he had borrowed, then Luke Flint was to have the right to sell the land. 11. If I don't ring up before six o'clock, then you are to go to the concert hall alone and wait for me at the entrance. Is that clear? 12. The planters had to gather their cotton at once, as they had been warned that heavy rains were expected. 13. I have to wear glasses as my eyesight is very weak. 14. John­ny White had to borrow from Luke Flint at a high interest, for there was no one else in the district who lent money. 15. "Cheating is a very nasty thing,"' said the teacher, "and we are to get rid of it."

Environment - a set of components of the environment, natural and man-made natural objects and man-made objects.
Components of the environment - land, minerals, soils, surface and ground water, air, flora, fauna and other organisms, as well as the ozone layer of the atmosphere and near-Earth space, providing a set of favorable conditions for the existence of life on Earth.
Pollution - into the environment of matter and (or) energy, property, location or number of which have a negative impact on the environment.
Contaminant - a substance or mixture of substances, the number and (or) concentrations exceed established for chemical substances, including radioactive and other substances and microorganisms standards and have a negative impact on the environment.
Air pollution - a really serious problem. Air is composed of oxygen, nitrogen, water vapor, and, thanks to our civilization, of a variety of toxic particles. The more of these particles in the air is, the less room is left in the atmosphere for oxygen.
   The problem of air pollution is not limited to the space outside. The air inside our homes and offices can be as dangerous to your health. The main source of pollution - cigarette smoke, but it is not the only one. Toxins are allocated even when you just cook. Every time you scratch the Teflon non-stick coating is allocated enough toxins to kill a canary.
 Greenhouse effect, which we all have been associated with the phenomenon of global warming, caused by toxic gases. The main enemy of clear atmosphere - methane. It is released from the decomposition of sewage.
Greatly affects our waterways. In every neighborhood, in every city there drain sewer, storm water from the highways and municipal enterprises directly into the river. Everything goes into the water, passing minor cleaning steps.