Помогите пожалуйста с английским, буду очень благодарна

Exercise VI. Put the following infinitives into the Future Perfect Tense:

1. The committee (to draft) the plan by tomorrow.

2. The librarian (to register) all the books by the end of the week.

3. We (riot to discuss) all the questions by the time they come.

4. The secretary (to look through) all the papers by the time the director comes.

5. They (to receive) my letter by Saturday.

6. You (to return) from your voyage when my letter reaches you.

7. The clerk (to decode) the telegrams by the time his chief comes.

8. We (to start) working at this problem by the end of the month.

9. He (to decide) what to do by the time his friends ring him up.

10. They (to meet) by the beginning of the New Year party.