Раскройте скобки, употребляя глаголы в passive voice. 1. flowers (to water) twice a week. 2. the letter (to write) now. 3. these houses (to build) next year. 4. new material (to explain) by the teacher this week.

1. Flowers are watered twice a week.
2. The letter is being written now.
3. These houses will be built next year.
4. New material has been explained by the teacher this week.

1. are watered
2. is being written
3. will be built
4. will be expained