Holding short runway 27R, ready for departure to practice area

Contacting tower holding short runway ready for departure (Practice Area)

245CG, Opa-Locka tower, right turn to NW, cleared for take-off runway 27R.
245CG, Opa-Locka tower, fly West, cleared for take-off runway 27R.
245CG, Opa-Locka tower, roger.
245CG,Opa-Locka tower, hold short runway 27R.
245CG, right tunr to NW approved.
245CG, frequency change approved.

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