
21.What do we know about the 2021 Sahara Marathon?
A.It is a big family event.
B.It provides a virtual sightseeing.
C.It will be held in the desert.
D.It raises money for people in need.
22.How much should a runner pay if he wants to register for the race?
A.15 euros.
B.20 euros.
C.25 euros.
D.40 euros.