2. If you want to learn English it must... (practise) regularly.
3. The laws must... (follow) by everyone.
4. This work can ... (do) later.
5. The test can ... (take) next Monday.
6. I don’t know when but it must... (do) on time.
7. These papers must... (sign) by your partners.
8. The suitcases can ... (pack) after dinner.
9. The problem must... (discuss) at the meeting.
10. Everything must... (arrange) before he comes