1. They wanted to invite Tom to their birthday party
-> They didn't want to invite Tom to their birthday party.
-> Did they want to invite Tom to their birthday party ?
2. He went to class early yesterday
-> He didn't go to class early yesterday.
-> Did he go to class early yesterday ?
3. She was very busy last week
-> She wasn't very busy last week.
-> Was she very busy last week ?
Chuyển sang câu phủ định và nghi vấn
1. They wanted to invite Tom to their birthday party
=> They didn't wanter to invite Tom to their birthday party.
=> Do they want to invite Tom to their birthday party ?
2. He went to class early yesterday
=> He didn't go to class early yesterday.
=> Did he go to class early yesterday ?
3. She was very busy last week
=> She wasn't very busy last week.
=> Was she very busy last week ?
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