Exercise 3. Finished vs unfinished

Here are the sentences completed with the correct form of the verbs in brackets (Present Perfect or Present Perfect Continuous):

1. She has read two novels this week. (Она прочитала два романа на этой неделе.)
2. She has been reading for hours. (Она читает уже несколько часов.)
3. They have been working on the project for hours. (Они работают над проектом уже несколько часов.)
4. He has already written five pages of his essay. (Он уже написал пять страниц своего эссе.)
5. I have been phoning all day. (Я звоню весь день.)
6. We have been studying for the exam all morning. (Мы учимся к экзамену все утро.)
7. I have eaten three slices of pizza. (Я съел три куска пиццы.)
8. They have been repairing the car for hours. (Они ремонтируют машину уже несколько часов.)
9. She has been swimming in the pool for the past hour. (Она плавает в бассейне последний час.)
10. He has visited several countries in his lifetime. (Он посетил несколько стран за свою жизнь.)

Explanation:

• Present Perfect (has/have + past participle) is used for completed actions with a result in the present or for experiences in someone's life.
• Present Perfect Continuous (has/have been + verb-ing) is used for actions that started in the past and are still continuing or have just finished with emphasis on the duration of the action.