Варвара Шабалова

Надо найти глагол-сказуемое и определить его видовременную форму и залог!-
The new system of authomatic control is widely used in car operation.
. If friction were eliminated, no force at all would be necessary to keep the body in motion
. Since mechanization and automation had been introduced in the economy, the well-being of the population started growing steadily.
. Draft cattle is replaced almost everywere by agricultural…