1.Our trains are incredibly popular so be warned that we ……………… all our tickets before the start of the summer season.
a.
b.
c.
d.

2.By the time the athletes reach the ten kilometre point in tomorrow’s marathon, they…………. for over an hour. That’s why there is a drinks station by the side of the road at that point.

a. ‘ll have been running
b. ‘ll be running
c. ‘ll have run