—_______that your backpack?— No, ________

试题详情及答案解析

—_______that your backpack?
— No, _________. It's his backpack .

A．is, it isn't	B．Is, it isn't
C．Are, it is	D．are, it is

答案：B

试题分析：句意：那是你的背包吗？不，它不是。它是他的背包。主语that是第三人称单数，故谓语动词是is； Is that ...?的否定回答是No,it isn't.故选B。
考点：考查交际用语。