Exercise: Fill in the blanks with suitable form of present perfect tense. 1) Emmathis film on TVnot/to see)2) Whenshethe office? (to phone)3)the Millersyet? (to arrive)4) Johnon a trip through Alaska.(not/to go)5)they everto New York? (to be)6) Andyhis sister's bike.(not/to repair)7) Whatyouin the kitchen? (to drop)8)a new laptop. (to buy)9) Tobyhis blue pen? (to find)10) The studentstheir homework.(not/to forget)11) A: Did you like the movie "Star Wars?"B: I don't know. Ithat movie. (see, never)12) My best friend and Ieach other for over fifteen years.(know)​

For several centuries, the number of plant and animal species has been inexorably declining at a high rate.

Deforestation is happening all over the planet and even affects parks and protected areas, which are the main supplier of oxygen on the planet.

Considerable harm to the flora is also caused by acid rain, which is caused by various enterprises, mostly metallurgical industries.

Atmospheric pollution has not bypassed any country.

Everywhere there are industrial enterprises, harmful emissions poisoning the air, exhaust gases from vehicles.

Soil pollution occurs regularly through the disposal of waste in the ground.

Moreover, not only enterprises, but also ordinary people.

Waste, rapidly increasing in volume, is often used as fertilizer for growing fruits and vegetables, the benefits of which are extremely doubtful.

Industrial waste also harms rivers, lakes and other bodies of water.

In many parts of the world, the water is undrinkable.

Every year, more than 26 million tons enter the world's oceans.

oil products, a huge amount of non-decomposing substances, products of the chemical and military industries.

Which in turn affects marine life.

The ozone layer is destroyed by freon-based aerosols, aircraft and spacecraft engines.

It is no secret that over the past decades, the number of minerals has almost halved.

This threatens the premature destruction of all resources and the extinction of energy sources.

ответ: Hello Ben! How are you?
I miss you very much and therefore I want to share with you all that happened to me.
The most important thing that happened in my life - I found myself a new hobby, it's volleyball.
I signed up for volleyball at school and now I go there on Mondays, Wednesdays and Saturdays.
I really like it there, it's so interesting!
And the most important thing I wanted to tell you is that competitions will be held there soon! We were told that we can invite our friends to participate too, so I decided to write to you.
I really hope that you will come, your friend Lina.

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