1) He _____ . a) am singing b) is singing c) aren't singing 2) Ducks _____ . a) is swimming b) are swimming c) am swimming 3) He _____ tennis. a) are playing b) is playing c) isn't playing 4) Look ! It ________ . a) am flying b) is flying c) are flying 5) She _____ now . a) aren't running b) is running

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