Помогите по английскому, пожалуйста Заполните пропуски, употребив for или since.

Заполните пропуски, употребив for или since.
We've been fishing _________ two hours.
I've been working in this office _________ a month.
They've been living in France _________ 1970,
He has been in prison _________ a year.
I’ve known that _________ a long time.
That man has been standing there _________ six o’clock.
She has driven the same car _________ 1975.
Things have changed _________ I was a girl.
The kettle has been boiling _________ a quarter of an hour.
The central heating has been on _________ October.
Ex.2. Поставьте глаголы в скобках в Present Perfect or Present Perfect Continuous.
1. Look! Somebody _______(break) the window.
2. I wonder if John _____(forget) my number. I ____(expect) him to call for the past two hours.
3. You look very upset. What _____(happen)?
4. You _____(not finish) that book yet? You _____read it for more than a week.
5. The meat must be nearly ready. I _____(cook) it for nearly an hour.
6. What you _____(do) for the last two hours? - I ____(sit) here working at this problem.
7. I _____(lose) my key. Can you help me look for it?
8. My brother is an actor. He ______(appear in several films).
9. Sorry! I’m late. – That’s all right. I ______(not wait) long.
10. She just ______(sell) two of her paintings. – She’s lucky. I ____(paint) for 5 years and I ____(not sell) a single picture yet.
11. He ____(sleep) since ten o’clock. It’s time he woke up.
12. That boy ____ (eat) seven ice-creams.
13. That helicopter ____ (fly) round the house for the last hour; do you think it’s taking photographs?
14. We _____ (walk) ten kilometers.
15. We ____(walk) for three hours.
16. I ____(work) for him for ten years and he never once say “Good morning” to me.
17. The radio _____(play) since 7 a.m. I wish someone would turn it off.
18. He ___(study) English for two years and doesn’t even know the alphabet yet