按要求完成下列各句
1. They will return in a week.(對畫線部分提問)
__________ __________ will they return?
2. "Don't spend too much time on computer games."Mr.Wang said to Tony.(改為同義句)
Mr. Wang __________ Tony __________ spend too much time on computer games.
3. Both Joy and Sam like singing Beijing Opera.(改為否定句)
__________ Joy __________ Sam __________ singing Beijing Opera.
4. Nobody knows the answers.(改為反意疑問句)
Nobody knows the answers, __________ __________?
5. You must hand in your history homework by the weekend.(改為被動語態(tài))
Your history homework __________ __________ __________ __________ by the weekend.