11. сорок
a. fourteen
b. forty
c. fourty
12.Jazz by black Americans.
a. was created
b. created
c.is been created
13you help me with the shopping, please?
а. Can
b. Shall
c. Must
14.Youto study hard for your exams.
a. shall
b.can't
c. have
15.Lynne as she was cleaning the windows.
a. was singing
b. sang
c. had sung
d. have been singing
11. c
12. a
13. a
14. a
15. d