Ребята, помогите пожалуйста разобраться. Буду очень благодарна!

Упражнение 2. Make sentences using Present Perfect or Present Perfect Continuous.
Пример
She clean the a! for four hours She has been cleaning the flat! for four hours.
I read Tolstoy stories in the park for two hours:
I read three stories.
Granny knit in the living room since morning
Helen /travel around Europe for 3 weeks.
she visit already /3 countries.
Упражнение 3. поставь глагол в скобках в Present Perfect или Present Perfect
I (not to see) him for ages.
He (to do) his lessons since lunch.
I (not to hear) about him for a long time.
I (to drive) since l was 17.
Jack (to fail) his driving test three times because k doesn't know how to park.
I think he (make) a lot of improvement.
Alice (not pass) her driving test because she doesn't know the rules well.
She (worry) about this for two months.
She (study) the driver's manual for hours every day.
10. She (not take) another test yet.
1. I (to have) a headache since got up.
12. He is my friend, I (to know) him for a long time.
13. (Ivan has a stomach ache He (to eat) junk food all day.
14. I (never to hear) that song before.
Упражнение 4. Correct the mistakes if any.
They are discussing the problem for hours, but has not solved it yet.
Somebody has been playing tennis since? o'clock.
John has been winning the championship two times.
The boys have fished for 3 hours.
How many books have you written?
Mike has invited many friends to his birthday party
They have been taken the dog for a walk.
Irene has left for the airport.