When 704 hits straight like this then you will get a follow up 00, 77, 44, probably not in that order but at least two doubles will come from it. The exception to this rule would be if it hit late in the month . 

70x will produce these pairs usually within a few draws does not matter if its front or back 70x pair

24x 70x 27x 14x 45x 48x 22x 20x 08x 18x 16x 78x 23x 

The exception to the rule would be if you get a pair of these prior (the draw before) then this does not usually work.