1) She _____ swimming. a) is b) isn't c) are 2) He _____ singing. a) am b) is c) aren't 3) They _____ swimming. a) is b) are c) am 4) She _____ swimming. a) is b) isn't c) aren't 5) She _____ skipping. a) are b) am c) is 6) He _____ playing tennis. a) are b) is c) isn't 7) He _____ rollerblading. a) is b) aren't c) are 8) It _____ flying. a) am b) is c) isn't 9) It _____ sleeping. a) aren't b) isn't c) is 10) They _____ sleeping. a) isn't b) are c) aren't 11) They _____ swimming. a) are b) am c) is 12) She _____ running. a) aren't b) is c) isn't 13) He _____ dancing. a) am b) isn't c) is 14) They _____ reading. a) aren't b) is c) are 15) She _____ playing. a) is b) isn't c) am

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