Благаю іть розкрийте дужки,поставивши дієслово у відповідній формі 1- we(not do) the exercise. 2-the children (built) a sand castle. 3-he(see)her before? 4-the director (speak) to his parents. 5-they(plant) a lot of trees in the park. 6-you(see) this performance? 7- oksana (not return)yet 8-his sister (enter) the university

1. We haven't done the exercise
2. The children have built a sand castle
3. Have you seen her before?
4. Director has spoke to his parents.
5. They have planted a lot of trees in the park
6. Have you seen this perfomance?
7. Oksana hasn't returned yet
8. His sister hasd entered the University