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1. I'm sure he didn't take your briefcase deliberately.
2. I remember that I have done this assignment before.
3. No one else in the world can play football better than Pele.
4. You have eaten more than I have.
5. I worked with a man who was very nice.
6. The man waiting for us at the bus stop yesterday was Mrs.Pike.
7. Mai speaks English the most fluently in our club.
8. Because Jack's sister was careless, Jack was punished.
9. It was such astonishing information that they were speechless.
10. This river flows through the town which is extremely polluted.
11. The best cook to whom I live next door served all of us at the party yesterday.
12. He is the most likely person to succeed in solving the problems.