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16. My father (not/ play) any sport since last year.

17. I’d better have a shower. I (not/have)………. one since Thursday.

18. I don’t live with my family now and we (not/see)…. each other for five years.

19. I…… just (realize)…………... that there are only four weeks to the end of term.

20. The train drivers (go)… on strike and they stopped working at twelve o’clock.