Question

Поставь глаголы в скобках в правильную форму и перепиши предложения/ Определите форму глагола. Пожалуйста срочно нужно!!!!!!!!!!!!

1 Any square (have) four angles.
2 They already (apply) new methods in their research.
3. The students (teach) English and other subjects.
4. Before the flood defense system was worked out, a great number of experiments (make) at the designing institute.

Answer 1

Ответ:

1. Any square has four angles.

2. They have already applied new methods in their research. (Present Perfect)

3. The students are teaching English and other subjects. (Present Continuous)

4. Before the flood defense system was worked out, a great number of experiments had been made at the designing institute. (Past Perfect)