Помогите, пожалуйста, с английским! Даю 23 балла!11. By the beginning of

Помогите, пожалуйста, с английским! Даю 23 балла!
11. By the beginning of next month the firm ..... for four years.
a) will function
b) will have been functioning
c) is functioning
d) will have functioned

12. By the time Mother comes home Peter ..... all the ice-cream.
a) will eat
b) will have eaten
c) will have been eating
d) will be eating

13. I am reading an English book now. It is so interesting that by the end of the day I ..... reading it.
a) am finishing
b) will have finished
c) will be finishing
d) will finish

14. I will be back soon. I hope you ..... your translation by the time I come.
a) will have finished
b) will finish
c) will be finishing
d) will have been finishing

15. My parents are returning from Italy next Monday at 7 p.m. So this time next Monday I ..... them at the airport.
a) will meet
b) will be meeting
c) will have met
d) will have been meeting