Answer:
Q4.)
6. She did not go to the university yesterday.
7. Are you a student?
8. Is this your book?
9. What time did he go to bed yesterday?
10. How many children do you have?
Q6.)
1. Nice to meet you.
2. What are you doing?
3. I just have done my homework.
4. Can you play the piano?
5. I met my Friend in France.
Q7.)
1. She visits her parents every weekend.
2. Do you go to the university yesterday?
3. They had their breakfast.
4. How many brothers and sisters do they have?
5. What are you doing now?
Hope this helps! :)