написать предложения в Present Simple , present cont., present perfect., past simple., past cont., past perfect.,
1)The cars are produced
2)the house is made of wood
3) the coffee is grown
Это очень легко. Достаточно знать форму их образования.
1 are being produced
had been produced
were produced
were being produced
Вроде так =) Не уверена насчет с Cont. Но в остальном вроде правильно. Удачи ^^~