6. Выберите правильный вариант ответа. 1. The engineers tackling/tackled/being tackled the energy problem did not reach a compromise. 2. The equipment delivering/delivered/being delivered yesterday has just been installed. 3. The coils connecting/connected/being connected to each other will be attached to a battery through an on-off switch. 4. Tests of the properties of the electromagnetic circuit carrying/carried/being carried out by this team have shown good results. 5. The high voltage circuit checking/checked/being checked now will be used soon. 6. Many people are against power plants burning/burnt/being burnt waste.