Read the text and complete it with the missing parts of the idioms.

Write one word in each gap.

Planning a party isn't rocket [ ], but you need to have good managing skills. Moreover, it's important for everyone involved to be on the [ ] wavelength in terms of what kind of party they want to have. If one person wants a formal dinner party and another wants a casual backyard barbecue, they might get their wires [ ]. But if everyone agrees on the same vision, they can be [ ] years ahead of the game in terms of planning and execution.