--- Excuse me, is this _______ new computer? --- Yes, it’s _______. 

--How do you like these two books? ---___________ of them are interesting. I want to read them again.

—Is this red bag yours?—No, it isn’t.          is that black one.

—Is your ipad white, Mandy? —No, it isn’t. _______ is black.

—Is this your sweater, Joy?—No, It’s not________ sweater. ________is yellow.