你到商店买东西, 服务员会有礼貌地对你说:
A. What do you want to buy?
B. Can I help you?
C. Here you are.
()（7） --- Is that your T-shirt? --- No, __________.
A. it isB. it isn’tC. that is
()（6） --- Would you like an egg?--- _________.
A. Yes, I amB. No, I’m not.C. Yes, please.
()（5） This is ______egg.
A. aB. anC. /
()（4） This is _____ new skirt.
A. IB. anC. my
()（3） ________ Alice. She’s ______ friend.
A. She; herB. He’s; myC. She’s; my