1) He ( to know) him when I was at school.
2) Where's Kate? We ( not to see ) her for ages.
3) My father (not to come) late from work.
4) She ( to become) a doctor two years ago.
5) When he( to change) his job?
6) It just ( to rain).
7) We ( not to have ) a cup of coffee this morning.
8) Ann can't find her key. She ( to lose) it.
9) ...you ( to go )to the swimming pool last Sunday?

1) He HAVE KNOWN him when I was at school.

2) Where's Kate? We HAVEN'T SEE her for ages.

3) My father HAVEN'T COME late from work.

4) She HAD BECOME a doctor two years ago.

5) When he HAD CHANGES his job?

6) It just HAVE BEEN RAINING.

7) We HAVEN'T HAD a cup of coffee this morning.

8) Ann can't find her key. She HAD LOST it.

9) HAVE you GO to the swimming pool last Sunday?

Объяснение:

you : what kinds of conflicts do you know?

your partner: well, i know  different kinds of conflicts: personal, political and global. which kind of conflicts are you interested most of all?

you: of course,  personal conflicts. tell me a few words   about this kind of conflicts.

your partner: well, these conflicts  are happen between different people: between classmates, friends and etc.

you: of course, i may add something, such as:   roommates, colleagues, between students and

your partner: yes! and of course, between the members of the family as a rule.

you:   how often do you have conflicts?

your partner: oh, very seldom. and what about you?

you: sometimes i have conflicts, but not very often.

your partner: how do you think, what are the most common causes of conflicts?

your: misunderstanding, i think.

your partner:   is it possible to avoid conflicts?

you: yes, sure. we should be more  tolerant to each other.

your partner: thank you for interesting conversation.

you: you are welcome.