ответ:Утвердительные:
1. People used to grow vegetables and cereals for food by themselves.
2. People used to be dependent from feudalists.
3. People used to celebrate different holidays like New Year in diffirent way.
4. Countries used to have a lot of wars of conquests.
5. A lot of countries used to have monarch as a head of the country.
Отрицательные:
1. People didn't use to travel by cars and trains.
2. People didn't use to watch TV, use laptops and mobile phones.
3. People didn't use to have any gadgets.
4. People didn't use to have good medicine.
5. People didn't use to be as much educated in some special disciplines like physics as much as we are.
Объяснение:
His name is Pavel and He is 13 years old. He studies in general education school in Novosibirsk. Pavel gets good marks but not the perfect ones. His favorite subjects are geography, physical education and literature. Besides He know English almost perfectly that’s why Pavel likes to go to English lessons too. His height is 155 centimeters which is considered averages in my class maybe a little bit above average. Pavel definitely needs to grow taller, at least 20 more centimeters or 25 will be even better. Pavel thinks that the normal height for a man is 180 centimeters. He weight is 55 kilograms which is normal for his height. His hair is dark blonde and my eyes are grey. His nose and ears are normal and my face doesn’t have any peculiarities just like the rest of my body — Pavel is an absolutely normal average person.He have several hobbies.He main hobby is music.Pavel play guitar very well.Boy knows more than 300 songs and the majority of them are in English that’s why he knows English well.Pavel planning to create my own band,boy looking for partners now and we are rehearsing together. His father likes this hobby of mine because he is a musician but he plays saxophone. His second hobby is sports. He play football, basketball, volleyball and pingpong pretty well. But his favorite sports is workout. It’s something likes gymnastics but it’s done outside. There is a great sports ground outside his house where Pavel likes to do pull-ups, push-ups on parallel bars, run around and play pingpong.His father does it with him often and sometimes his mother does it too but she prefers jogging in the park and go to the swimming pool in winter.
2) has been
3) leaves (можно еще left)
4) is working
5) wrote
6) has had
7) is meeting
8) can (или можно написать could или must - зависит от степени уверенности)
9) should
10) are playing
11) was investigated
12) was invented
13) breaks down
14) will be known
15) swimming
16) do you drink
17) was
18) had crashed
19) haven't talked
20) slower