Ⅰ.单项选择(每小题1分，共15分)
1．______ computer is nice.I like it.
A．We B．Our
C．I D．You
2．—What can I do for you?
—______.
A．No，not B．Don't help me
C．Yes，help me D．Yes，please
3．We have bags ______ white，black and red ______ only ￥5.
A．at；for B．in；for
C．for；in D．in；on
4．—______
—Yes，please.I want a red sweater for my daughter.
A．How are you? B．Excuse me.
C．Can I help you? D．What's your name?
