按要求改写下列句子 1. It is my first time to be on a plane, so I don't know what I should do.(改为同义句) It is my first time to travel ________ plane, so I don't know what __________ __________. 2. 'I am popular at school,' he thought.(改为间接引语) He thought __________ __________ popular at school. 3. The policeman told the boys not to play football in the street.(改为一般疑问句) __________ the policeman __________ the boys not to play football in the street? 4. He was reading a book on the playground.(对画线部分提问) __________ was he __________ on the playground? 5. If he has enough money, he __________ __________ __________ __________ __________(将会买一座新房子).(完成句子)