Giải giúp mình với ạ 
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16. "Did you go to the cinema last night?", said Bill.
17. "Why didn't you go to school yesterday?", said Tom.
18. "Which team has gone?", she said.
19. "Whose car is it?", he asked.
20. "What is your new house like?", said Nam.
21. "What else did you see?", I asked the boy.
22. "How often do you go to the theatre?", I said to him.