Listening Look at these five sentences. Listen to Tim and Janet talking about the courses they
are doing in their free time. Decide if each sentence is correct or incorrect. If you
think it is correct, write A, if you think it is not correct, write B.
1. Janet thinks her computer classes are too long.
2. Tim has learnt many hew things on his course.
3. Tim has to buy the food he cooks on his course.
4. Tim asks Janet to help him with his cookery.
5. Janet agrees to help Tim with his problem.​

1 Have they already arrived? // Have they arrived already?

Здесь никак не образовать present perfect continuous, потому что здесь есть маркер already. Он указывает на завершенное действие (они уже приехали?), а время present perfect continuous указывает на длительность, которой в предложении нет.

2 Lucy has run 2000 meters today.

Здесь никак не образовать present perfect continuous. В предложении есть  некая завершенность ("сегодня она пробежала 2000 метров"), а время present perfect continuous указывает на длительность, которой в предложении нет.

3 I have been cleaning all morning!

4 How long have you known Simon?

С глаголом know нельзя образовать continuous, поэтому мы заменяем его на обычный present perfect.

5 I have drunk more water.

Обратите внимание, что и здесь не разумно использовать континиус, потому что нам нужно указать не на длительность, а на результат (я попила и мне легче)

6 Sorry about the mess. I have been baking.

7 How many times have you taken this exam?

Здесь никак не образовать present perfect continuous, потому что здесь есть вопрос how many times (сколько раз). Он указывает на "опыт", а время present perfect continuous указывает на длительность, которой в предложении нет.

8 He has eaten six bars of chocolate today!

Здесь никак не образовать present perfect continuous. В предложении есть  некая завершенность ("сколько шоколадок съел за день?"), а время present perfect continuous указывает на длительность, которой в предложении нет.

9 Julia has cooked dinner. Let's go and eat!

Обратите внимание, что и здесь не разумно использовать континиус, потому что нам нужно указать не на длительность, а на результат (обед уже на столе, пошли есть)

10 The students have finished their exams. They're very happy.

Обратите внимание, что и здесь не разумно использовать континиус, потому что нам нужно указать не на длительность, а на результат (они сдали экзамены и счастливые),

Объяснение:

Во многих случаях здесь никак не употребишь время present perfect continuous, потому что его главная цель - отвечать на вопрос "как долго?".

Время формируется следующим образом: have/has been + ing

has - he/she/ithave - I/you/we/they

This is a story about little girl Mila, who lived with her granny many years ago. They had a garden with vegetables and fruits, berries, and another things to eat. They hadn't got a fridge, cause it was nearly 100 years ago. But they had a special dark and cold room to save food fresh for a long time. Mila didn't go to this room till she was 10. That is a main idea of the story. One day, granny McDuddle asked:"Mila, please, couldn't you go to cold room to bring me a strawberry jam? I'll cook some pancakes, as you like." Mila loved pancakes. So, she said:"yes, granny" and ran to the room. But only when she came in, she understood how was it frightening, to go deeper into room in darkness. She knew, that there can be bats. She 
really afraided of bats. But she loved pancakes more, so she continued her journey. And, suddenly, she hard a squeak. "Pee-pee-pee", she heard. "Oh, no! It is bat!",- Mila thought. She went closer to noise and saw a small creature, that couldn't fly. It had broken wing. It was scrawling by round. "Oh my God! It is injured!".-Mila said. She toke small bat with two handkerchiefs not to be bitten by frightened animal. She brought bat to her granny, and then to local vet. Since that moment Mila didn't afraid of bats. "The devil isn't so black, how he is drawn",- said granny McDuddle to Mila.