Вам необходимо определить время и вписать его в пропуск (present simple, past simple, future simple, present perfect, past perfect).

1.the history of computers in education has been variously characterized as an "accidental revolution" or "unthinking man and his thinking machines.
2.computers can be classified into three generations.

grrrrrrrrrr    1   14.11.2019 11:05    0