6 Choose the correct answers. 1 While I walked / was walking home I was seeing /
saw Lisa.
2 Mandy called / was calling me while we were
watching / watched the match.
3 It rained / was raining when we were arriving /
arrived at the beach.
4 He didn't say / wasn't saying anything while
I asked / was asking him about the exam.
5 Did you see / Were you seeing me while we did /
were doing the exam?
6 Who did you meet / were you meeting yesterday
while I was working / worked.
7 He was practising practised his guitar when one
of the strings broke / was breaking.
8 While I studied / was studying my mum was going
/ went shopping.

1 While was walking home I  saw Lisa.

2 Mandy called me while we were watching  the match.

3 It rained was raining when we  arrived at the beach.

4 He wasn't saying anything while I was asking him about the exam.

5 Did you see  me while we  were doing the exam?

6 Who did you meet    yesterday  while I was working ?

7 He was practising his guitar when one

of the strings broke  

8 While I  was studying my mum   went shopping.

Объяснение:

1. While I was walking home I saw Lisa.

2.Mandy called me while we were watching the match.

3. It was raining when we arrived at the beach.

4. He wasn't saying anything while I was asking him about the exam(?).

5. Did you see me while we were doing the exam?

6.Who did you meet yesterday while I was working?

7.He was practicing his guitar when one of the strings broke.

8.While I was studying my mum went shopping.

Думаю, правильно :/