Что ставить?
1)Do you know when they ... ?
a)would come
b)will come
2)By the time we come they ... .
a)will be going
b)will have gone
3)They ... for you at 7p.m. tomorrow.
a)will have waited
b)will be waiting
c)will have been waiting

1 b2 a3 не знаю,прости

1)Do you know when they ... ?b)will come2)By the time we come they ... .b)will have gone3)They ... for you at 7p.m. tomorrow.b)will be waiting