. —I have to get to the post office by six o’clock, but it is almost six now.

—        . This clock is fifteen minutes fast.

A．That’s too bad

B．Sounds good

C．Sure, you can

D．Take it easy

在窗体上画一个名称为“Command1”的命令按钮。然后编写如下事件过程

Private Sub Command1 Click()

Dim a As String

a＝"123456789"

For i=1 To 5

Print Space(6-i)；Mid$(a，（），2*i-1)

Next i

End Sub

程序运行后，单击命令按钮，窗体上的输出结果是

5

456

34567

2345678

123456789

请填空。