Start by opening up Toolbox by going to View | Toolbox (Ctrl+Alt+X). Then type Ch and drag CheckBox into the markup, as shown here in the following screenshot:
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Figure 3.1.1: CheckBox has been dragged into the markup
CheckBox is just a box—it either has a check mark or it doesn't. That's it. Then under CheckBox, wrap the Label within a panel by typing panel into the Search Toolbox field. Drag and drop a panel control into the page, as shown in the following screenshot: