1.___________ (专家) say we should walk at least 10,000  steps one day.

2. In the past, people's jobs_________（需要）more physicaleffort.

3. The wrong diet means you'll put on_______(重量).

4. Watching too much TV has a bad_______(影响)on your study.

在窗体中添加一个名称为Commandl的命令按钮，然后编写如下程序：
Public x As Integer
Private Sub Commandl_Click()
x＝3
Call f1
Call f2
MsgBox x
End Sub
Private Sub f1()
X＝X*X
End Sub
Private Sub f2()
Dim x As Integer
x＝x+4
End Sub
窗体打开运行后，单击命令按钮，则消息框的输出结果为______。