I my keys before Lost or Have lost

She that book yet
didn't finish or hasn't finished

Is this correct? :
They have eaten Thai food before.

Correct the sentence below: the pizza delivery boy was neither early nor late he was right on time. a: correct as it is b: the pizza delivery boy was neither early nor late, he was right on time. c: the pizza delivery boy was neither early nor late; and he was right on time. d: the pizza delivery boy was neither early nor late: he was right on time.