Choose the best answer

10. the football match is on 2 a.m , ___ i can`t watch it
a. then
b. although
b. because
d. so
11 make the letter a b c or d  to indicate the word whose underlined part is different
a. arrives
b.finishes
c. goes
d. leaves
12. Have you ever___ to london?
a. been
b. be
c. being
d.went