6a В Какой форме стоят глаголы?

1) In this country all orbital stations from Salyut 5 onwards were used for that purpose, as well as rockets.

2) Since 1976 over 600 technological experiments have been carried out on board manned and unmanned space vehicles.

3) Preparatory

work for industrial production in space at a larger scale is being

carried out in Russia, the USA, Western Europe and Japan.

1) were used - Past Simple Passive

2) have been carried - Present Perfect Passive

3) is being carried out - Present Continuous Passive

1) In this country all orbital stations from Salyut 5 onwards were used for that purpose, as well as rockets. Past Simple Passive

2) Since 1976 over 600 technological experiments have been carried out on board manned and unmanned space vehicles. Present Perfect Passive

3) Preparatory work for industrial production in space at a larger scale is being

carried out in Russia, the USA, Western Europe and Japan. Present Continuous Passive