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Ex. 243

1)      were / was writing / was reading

2)      didn’t tell / had received

3)      asked / knew /lived

4)      said / didn’t know

5)      asked / could

6)      said/ had given

7)      asked / had put

8)      was sitting / thinking  / opened/ hadn’t seen/ entered

9)      came / were having / was / saw

10)   saw / was leaving

11)   hadn’t seen / met

12)   had left /had

13)   felt / wanted

14)   thought/ had already gone

15)   found/was talking / were standing

16)   was speaking / had never heard before

17)   told / had learnt

18)   entered / took/ went