A:(3,4)
B:(﹣3,2)
C:(﹣1,0)
D:(5,﹣6)
下列说法中,错误的是( )
A:Hi, Li Ming.
B:Hi, Mrs Li.
A:What are you doing?
B:I'm reading a story book. What are you doing?
A:I'm writing a letter. May I look at your story book?
B:Certainly. Here you are.
A:Thank you.