1) When he was young, my grandfather _________ (run) 12 kilometres. a) can b) can't c) could d) couldn't 2) John can't run very fast but he ________ (jump) high. a) can b) can't c) could d) couldn't 3) ______ you _______ (finish) your homework last week? a) Can b) Could c) Can't d) Couldn't 4) The dog hurt its leg and it ______ (walk) a) can b) can't c) could d) couldn't 5) Sorry I __________ (not help) you paint your house yesterday. a) can b) can't c) could d) couldn't

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