1)
1. have been studying
2. has been working
3. have you been studying
4. have been playing
5. has been washing
2)
1. have to
2. has to
3.have to
4. have to
5 .have to
3)
1. are they?
2. can he?
3. doesn't she?
4. did you?
5. doesn't she?
4)
1. You can find out abouy endangered species of plants and animals in the Red Book.
2. Last Saturday, people in Belarus, with the President together , put on garden gloves, took a rake, buckets, large plastic bags and went to collect garbage from the streets of the country.
3. Factories and power plants emit toxic emissions into the atmosphere.
4. Acid rain poisons trees, plants, fish, animals.
5. This is not true. Katya made up this whole story.
6. The government has been trying for several years to reduce environmental pollution.
7. I can’t make out your handwriting.
8. In our yard there are containers in which we leave garbage for recycling.
Объяснение:
Если нужно, я могу объяснить любую тему английского в zoom. Мне нужен опыт в преподавании, поэтому готова бесплатно провести урок.
my father told me about douglas mawson in my childhood. in the winter of the 1912, a small squad of polar explorers went to the research expedition to the far coast of antarctica. there were only 3 persons in the group: mawson, ninnis and mertz. on the way back, when there were only 500 km remained before the base, ninnis with the sledge, food and the tent fell into a deep crevice and died. mawson and mertz had to continue their trip together practically not having supplies of food. to survive, the explorers ate meat of sick dogs which traveled with them. that food became deathful for mertz, and after a while he died. having buried his friend, mawson continued his way alone. by that time, he suffered from abdominal pain, got serious frostbitten hands, legs and face, but despite everything, went ahead. when mawson was already close to reach the base, he fell into a crevasse in the ice. by some miracle, the geologist managed to find way out to the surface. after a few days, being ill and exhausted, he still could return to his camp.