I can’t afford ______ the white car, it’s too expensive.

A．to buy

B．buying

C．in buy

D．in buying

请填写下列空白以实现运行后形成一个主对角线上元素值为l，其他元素为0的6×6阶矩阵。
Private Sub Command1_Click()
Dim s (6,6)
For i=1 To 6
For i=1 To 6
If i=j Then
(13)
Else
(14)
End If
Print (15)
Next j
Print
Next i
End Sub