问题
选择题
—Hello! _____ Mr. Green?
—Yes, this is Mr. Green. Please speak.[ ]
A. Is he
B. Are you
C. Is this
D. Is that
答案
答案：D
搜题请搜索小程序“爱下问搜题”
—Hello! _____ Mr. Green?
—Yes, this is Mr. Green. Please speak.[ ]
A. Is he
B. Are you
C. Is this
D. Is that
答案：D
平面上的牙是（）