将下列句子改为否定句，一般疑问句并做肯定、否定回答。1. Bob played a game.
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2. I had fun watching the game.
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3. He plays on a team.
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4. The game is at the gym.
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__________________________________________________________1. Bob didn't play a game.
Did Bob play a game?
Yes, he did. No, he didn't.
2. I didn't have fun watching the game.
Did you have fun watching the game?
Yes, I did. No, I didn't.
3. He didn't play on a team.
Did he play on a team?
Yes, he did. No, he didn't.
4. The game isn't at the gym.
Is the game at the gym?
Yes, it is. No, it isn't.