根据所给提示，完成句型转换。
1. There are some new students in our school this term. (改为否定句)
There _______ _______ new students in our school this term.
2. The students don't have much time to play with their friends. (改为反义疑问句)
The students don't have much time to play with their friends, ________ ________?
3. Maria and Jane have waited at the airport for two hours. (对画线部分提问)
________ _________ have Maria and Jane waited at the airport?
4. The questions are very easy.The children can understand them. (合并为一句)
The questions are _________ ________ for the children to understand.
5. (课改实验区考生做) ①Jim left Chongqing 3 days ago because of his new work. (改为同义句)
Jim has ________ ________ from Chongqing for 3 days because of his new work.
(非课改实验区考生做)
② The film began about 20 minutes ago.You are late. (改为同义句)
The film has ________ ________ for about 20 minutes. You are late.
