Помогите пожалуйста... Составить вопросы, начиная с вопросительного слова в скобках.1. They

Помогите пожалуйста... Составить вопросы, начиная с вопросительного слова в скобках.
1. They went to the theatre yesterday (where).
2. We begin our lessons at 9 (when).
3. I learn many subjects at the Institute (how many subjects).
4. These foreign students understand Russian well (how).
5. His mother teachers French at school (who).
6. She makes mistakes in grammar because she knows it badly (why)
7. Those students passed all examinations well (how)
8. His brother graduated from the Institute 2 years ago (when)
9. He failed in chemistry, because he was not ready for it (why)
10. These schoolchildren will leave school next year (when)
11. They will equip the laboratory with the apparatus (what)
12. G. Sedov needed money for his expendition (what)
13. My friend will help me with the laboratory work (who)
14. The writer wrote a new book about the people of Kamaz (what)
15. They opened the library at 9 o'clock (when)
16. She bought a new English-Russian dictionary (what)