1why are there 2 why is 3 why does 4 why don't a) 50 stars on the american flag ? b they use euros in northern lreland ? c ) lreland green ? d ) the american president live in washington dc?

1a/ 2c/ 3d /4b ответ должен быть таким

ZooЗоопаркA zoo is a place where various animals, reptiles, mammals, insects and birds are kept. Sometimes you can see rare species of animals there. Usually zoos don’t contain domestic or farm animals, but sometimes there are children’s areas with such creatures, as donkeys, mini-horses, sheep, geese, pigs, rabbits and even pheasants. These are secluded areas where children can pet and feed animals. A visit to the zoo can be both entertaining and educational. There we can learn new facts about animals’ lives. Due to quick urbanization and deforestation many species cannot live in their natural habitat anymore. That’s why zoos and reservations exist. Opinions on advantages and disadvantages of keeping animals in the zoos differ. Some people think that zoo is a perfect place for animals, as they are always fed, well-treated and live in good conditions there. Besides, people are happy to have a chance to see wild, beautiful and exotic animals in live, to learn more about their behavior and lifestyle. From the other hand, animals have to live as close to their natural habitat as possible, for example, near forests, rivers, savannahs, jungles, safari, etc. in this respect, open zoos or wildlife reserves are much better. They usually occupy vast expanses of land and let the animals move around instead of sitting in a cage. These areas are protected and supervised by the government. Thus, animal preservation, as well as pros and cons of the zoo are a frequent topic of discussion.

I have done my homework already.
Я уже сделал домашнее задание.

We have no classes today, our teacher has fallen ill.
У нас сегодня не будет уроков, наш учитель заболел.

We haven’t heard that legend
Мы не слышали этой легенды.

I have talked to my mother over the phone. – Я поговорила с мамой по телефону. 

 Sam has visited his close friends. – Сэм навестил близких друзей. 

 Mary has entered the institute. – Мэри поступила в институт. 

 The dog has eaten all its food. – Собака съела всю свою еду. 

 We have seen this film already. – Мы уже видели этот фильм. 

 You have painted a wonderful picture. – Вы нарисовали чудесную картину!

They have left the building. – Они покинули здание