Do not fix them. The staggered pin arrangement is for easy soldering. Just count 123456.... pins from left to right and solder other component as shown in the circuit.
Solder some tinned copper wire (resistor legs if you havent any) onto the pins of the tda2005 to extend them, then neatly bend the wires to fit into the veroboard.
There are horizontal and vertical pin forms available for the '2005, the vertical is easier on vero.