XIII. Найдите слово, объединяющее данную тематическую группу. 19. a) engineering b) science c) philosophy d) physics

20. a) enterprise b) plant c) factory d) industry

21. a) instruction b) education c) teaching d) tuition

22. a) research b) equipment c) scientific d) journal

19)the science

20)хз

21)study of

22)notebook

19. b

20. d

21. b

22. c

a. spends

b. do you look for something

c. have not

d. does not like, but i love it

e. bought. do you like them?

f. were working, when the second world was started

g. has come, is living, met, was learning 

1) does she alvays come to class late? she doesn't alvays come to class late.

2) do you understand everything he says? i don't  understand everything he says.

3)was the door of the office open? the door of the office wasn't open?

4) were there few passengers in the compartment?   there weren't few passengers in the compartment.

5)will the lesson be over at 12 o'clock? the lesson won't be over at 12 o'clock

6) shall we take the children to the park?   we shan't take the children to the park.