Read and choose. example: whose is this? c) it's donna. d) it's donna's 1) what's this? c) it's a computer. d) they're computers. 2) who's she? a)she's my sister. b)it's my sister's. 3) what are these? a)it's an armchair. b)they're armchair. 4) whose is this ball? a)it's maya. b)it's maya's.