Chuyển sang câu có đại từ quan hệ .
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9. Nam is the most intelligent in our class . He has got the school's best student prize
=>.. .
10. The new stadium will be opened next week. It can hold 120,000 people.
11. He was sitting in the emergency room. It was very crowded.
....
12. A nurse was nearby. He called to her.
13. The nurse called a doctor. He came quickly.
14. She gave the man an injection. It made him go to sleep.
15. The Olympic snowboarding event was exciting. Many people watched it on TV.