Question

Поставить в нужную форму. 1) Personal computers ____________ (widely, to use) but working on them requires some techniques. 2) The flight ____________ (must, to control) by scientists and engineers.

Answer 1

Передумала писать что то сложноватенько

Answer 2

1) Personal computers are widely used, but working on them requires some techniques.

2) The flight must be controlled by scientists and engineers.