Помогите пожалуйста. Выберите сказуемое в предложении, определите его время и залог.
1. We shall refer to these data in the next article.
2. These data will be referred to in the next article.
3. They had finished the experiment by 5 o`clock.
4. The experiment had been finished by 5 o`clock.
5. The new production line is begin built at our plant.