There is a mistake in each sentence.Find and correct mistake

Kazakhstan is known for its hospitality
The citizens have their own mentality
The capital of the country is Astana
The country has a unique flora and fauna
There are many sights to see
So, Come to my land and see
I am sure you will be glad
To visit this wonderful land!

ˈkæzəkstæn ɪz nəʊn fɔːr ɪts ˌhɒspɪˈtælɪti
ðə ˈsɪtɪznz hæv ðeər əʊn mɛnˈtælɪti
ðə ˈkæpɪtl ɒv ðə ˈkʌntri ɪz æˈstænə
ðə ˈkʌntri hæz ə juːˈniːk ˈflɔːrə ænd ˈfɔːnə
ðeər ɑː ˈmɛni saɪts tuː siː
səʊ, kʌm tuː maɪ lænd ænd siː
aɪ æm ʃʊə juː wɪl biː glæd
tuː ˈvɪzɪt ðɪs ˈwʌndəfʊl lænd

1. I have known her for six years.
2. I knew him when I was at school.
3. He lived in Paris from 2010 to 2015.
4. He has lived in New York since 2001.
5. Where's Pete? I haven't seen him for ages.
6. I didn't see Pete last night.
7. We were at University from 2010 to 2015.
8. We have been in this lecture since September.
9. I haven't watched this video yet.
10. I didn't watch a video at the weekend.
11. He has lived in this street all his life.
12. His father came back to London last Sunday.
13. I wrote a letter to Nick two days ago.
14. He sent his letter yesterday.
15. They have just bought some postcards. 
16. Ann woke up late and missed her breakfast on Monday.
17. The artist drew a picture of sunset yesterday. She has drawn many pictures of sunsets in her lifetime. 
18. We first met in 2001. So we have known each other for 8 years.