С8 по нужно: " раскройте скобки, опотребив в одном из времен: past simple, present simple, present continuous, past continuous.". ! ​

8. Looked,saw,was snowing, was. 9. is talking,is talking,is watching 10. didn't go,was,stood

11. were working, was working

12. are sitting,are waiting,is

13. asked,didn't ask,was

14. Was, was beating, was

15. was opening,understood,did 16.returns, has,rests,didn't rest,was working