Your image isn't showing the table tools context tab because you don't have a table selected...

As for the gap at the bottom of the page, that has nothing to do with a break between tables but everything to do with the fact there is insufficient space for another row to fit on that page between the last row and the bottom margin. You can fix that by changing the top/bottom page margins and/or the table row height.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]