1) They _____leave school next year. a) will be able to b) will be able c) able 2) My sister _____ play tennis now. a) could b) can 3) I _____ walk when I was less than 2 years old. a) will be able to b) can c) could 4) He ______ the piano. a) can play b) can play to c) can to play 5) I ________ help you later. a) will be able b) will be able to c) could 6) Can you help me? I ________ this. a) can't understand b) can't to understand c) can't understand to 7) She ___________ cross the river without any help. a) was able to b) can c) could 8) They _______ do their homework. a) couldn't b) weren't able to c) can't

Ability: Can - could - will be able to

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