17. Поставить в Present Indefinite: Mary ... math at school,
а) teach b) teaches c)will teach
18. Поставить предложение в вопросительную форму.
Не likes swimming,
а) Does he like swimming? с) Do he like swimming? b) Does he likes swimming?
19. Поставить предложение в отрицательную форму
Саts likе meat.
а) Cats does not like meat. с) Сats do not like meat b) Cats do not likes meat.
20. Поставить в Past Indefinite:
Не ... home at 10 р.m. and ... to his parents.
а) соmе, phone b) саmе, phoned с) саmе, рhоnе
21. Поставить предложение в вопросительную форму.
Мike invited me to dinner.
а) Does mike invite те to dinner? b) Did Мike invite mе to dinner? с) Did mike invited те to dinner?

Mary ... math at school,

b) teaches

18. Поставить предложение в вопросительную форму.

Не likes swimming,

а) Does he like swimming?

19. Поставить предложение в отрицательную форму

Саts likе meat.

с) Сats do not like meat

20. Поставить в Past Indefinite:

Не ... home at 10 р.m. and ... to his parents.

b) саmе, phoned

21. Поставить предложение в вопросительную форму.

Мike invited me to dinner.

b) Did Мike invite mе to dinner?

17. a

18. a

19.b

20.c

21. c

Объяснение:

if five years ago i was asked about how i think the city of the future, then certainly i would say that this city, where instead of buses, trams and trolley buses carrying passengers spaceships and people run the factories, mills, a fully automated and subordinate to computer programs. the children in this town do not know no worries: at their disposal the best toys, rides, computer games but the years pass, we get older and realize that children's dreams - it's just fantasy. the city of my dreams - a modern metropolis with a lively, neat, comfortable houses in which there is heat and electricity, in which no water and sewer breaks, forming a fetid rivers and lakes, which are working elevators, and entrances are like showrooms.