题目内容：

请从A、B、C、D、E中选出能回答66-70小题的最佳答语。并将其番号填入卷I答题栏内相应的位置。

66)．Where is your book?               

67)．Are there computers on everyone's desk?          

68)．Are these your grandparents?           

69)．How old are you?                  

70)．What's your family name?               

A．Yes, they are.  B．It's on the desk.     C．Zhang. D．No, there aren't. E．I am twelve years old.

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