1. You must put out all smoking materials. (passive voice)
→ All smoking materials should be put out.
2. You must fasten the seat belt. (passive voice)
→ The seat belt must be fastened.
3. Our government will make more progress in gender discrimination. (passive voice)
→ More progress in gender discrimination will be made by our government.
4. You should read the safety instruction. (passive voice)
→ The safety instruction must be read.
5. They need not buy bread. (passive voice)
→ Bread need not be bought.
6. People have shown more than 50 films in Hanoi since June. (passive voice)
→ more than 50 films have been shown since June in Hanoi.
7. Will they teach French in our school next year? (passive voice)
→ Will French be taught in our school next year?
8. Very young children shouldn't eat sugary food. (passive voice)
→ Sugary food shouldn't be eaten by very young children.
9. The living room isn't as large as the kitchen. (than)
→ The kitchen is larger than the living room.
10. This train is more convenient than all the others. (most)
→ This train is the most convenient.