在窗体上画一个命令按钮Command1和3个标签控件(Lable1、Lable2和Lable3)，编写如下代码：
Public x As Integer
Private Sub Command1_Click()
Static y As Integer
Dim z As Integer
n=5
x=x+n
y=y+n
z=z+n
Lable1.Caption=x
Lable1.Caption=y
Lable1.Caption=z
End Sub
运行程序，连续3次单击命令按钮后，则3个标签中显示的内容分别为______。

— Do you know where the manager lives?  

— Yeah, but I have to        the telephone book for his address.  [ ]

A. search        

B. consult      

C. request      

D. examine