Употребление одной из 3 форм глаголов в английском языке

. He noticed that his friend became much more independent of his parents.
2. He wanted to know if you would come back early.
3. He said that they would see less of each other when they moved to London.
4.Has she shown her birth certificate? She cannot be more than 20.
5. I expect you to hear about English breakfast. Very few people know now the usual English breakfast is like.
6. He laughs best, who laughs last.
7. She was a woman of nearly fifty who was obviously a pretty onE.
8. She heard him sigh while he was reading.
9. I met Ann at her father's house twenty years ago and had known her ever since.
10. Oh! You have brought someone, Introduce me.

1. He noticed that his friend HAD BECOME much more independent of his parents.
2. He wanted to know if you would come back early.
3. He said that they would see less of each other when they moved to London.
4. Has she shown her birth certificate? She cannot be more than 20.
5. I expect you HAVE HEARD about English breakfast. Very few people know now what the usual English breakfast is like.
6. He laughs best who laughs last.
7. She was a woman of nearly fifty who HAD BEEN obviously pretty once.
8. She heard him sigh while he READ.

While CONJ-SUBORD
If something happens while something else is happening, the two things are happening at the same time.
They were grinning and watching while one man laughed and poured beer over the head of another...
I sat on the settee to unwrap the package while he stood by...
Her parents could help with child care while she works.

9. I met Ann at her father's house twenty years ago and HAVE KNOWN her ever since.
10. Oh! You've brought someone, Introduce me.