The staff timesheet can be verified from staff timesheet page. Please read verify staff timesheet article to know more about this process.
The reason you are not able to view verify option on staff timesheet page because you have turned down this setting in your ShiftCare account.
In order to turn on "smart attendance" setting, follow below steps.
Step 1: Go to "settings" from left-hand side navigation.
Step 2: Click on "Edit" but located at bottom right of the page. This will open the edit page.
Step 3: Now tick "Smart attendance" and hit "save" on the bottom right of the page.
Now you will be able to view verify shift options.