Поставьте глаголы to have, to do в нужную форму. 1. Students

Поставьте глаголы to have, to do в подходящую форму.
1. Students ..... many subjects.
2. He .... his homework everyday.
3. They .... teacher"s task.
4. Some students ... many problems with the session.
5. A post-graduate student must ..... every his leaders tasks.