1)will be ;will be opening
2) will be ;improved will be using
3)won't be cycling ;will be building
4)will had ; opened will get
5)will be; wont be able to

there will be a lot more pollution when they will open the now airport
until puplic transport improves, most people will use their cars
peiple will not cycle to work unless they build more will build more cycle lanes
as soon as the new road opens, traffic will get worse.
If all the trains get canceled, i will not be able to go to schoop today!