1) He ......making a cake. a) is b) isn't 2) She ......singing. a) is b) isn't 3) They..... talking. a) aren't b) are 4) He .......watching cartoons. a) isn't b) is 5) They ............listening to music. a) aren't b) are 6) They ...........eating burgers. a) are b) aren't 7) My sister ...........running. a) is b) are 8) The brown dog is ............. a) sleeping b) sleep 9) He is ................the violin. a) playing b) play 10) They are .............. bikes. a) riding b) rideing 11) They are ............... a tree. a) climb b) climbing 12) They .............playing badminton. a) aren't b) are 13) She ......throwing a ball. a) is b) isn't 14) They ............... swimming. a) aren't b) are 15) He is ........... a) swim b) swimming

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