1. Boiling an egg is not difficult.
-> It isn't difficult to boil an egg.
2. The ancient Egyptians built the pyramids.
-> The pyramids were built by the ancient Egyptians.
3. Cairo is hotter than London.
-> London isn’t as hot as Cairo.
4. It’s two years since I was just in Hanoi.
-> I have not been to Hanoi for two years.
5. She is overweight because she eats too much meat.
-> If she didn't eat too much meat, she wouldn't be overweight.
6. “I have visited this beauty spot many times”, said my father.
-> My father told me he had visited that beauty spot many times.
7. People say that he is a famous singer.
-> He is said to be a famous singer.
8. The policeman does not run as fast as the thief.
-> The thief runs faster than the policeman.
9. I haven’t seen this man here before.
-> This is the first time I have seen this man.
10. The novel is very interesting.
-> We are very interested in the novel.
11. Please don’t smoke in the dining room.
-> I’d rather you didn't smoke in the dining room.
12. The flight to Moscow lasted three and a half hour.
-> It took three and a half hour to fly to Moscow.
13. Mrs. Smith is the wisest member of the family.
-> No member of the family is wiser than Mrs. Smith.
14. I remembered and so did he.
-> He didn’t forget and neither did I.