Что ставить?1)Do you know when they ... ?a)would comeb)will come2)By the

Что ставить?1)Do you know when they ... ?a)would comeb)will come2)By the time we come they ... .a)will be goingb)will have gone3)They ... for you at 7p.m. tomorrow.a)will have waitedb)will be waitingc)will have been waiting