I will assume these are all for 2017 and are all for you. You file all of your W-2's for 2017 and and other tax information on the SAME tax return. .
After you enter the first W-2, it will either ask you "Do you have another W-2?", or you'll come to a W-2 summary screen that has a link or button that says "Add another W-2."
See this FAQ for instructions on importing or entering a W-2.
FAQ: How do I import or enter my W-2?
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