Chuyển câu trực tiếp sang câu gián tiếp

câu trực tiếp => câu gián tiếp
1. ' how should we use this support service ?' they wondered.
2. 'who should I turn to for help?' he asked.
3. 'Mum when should I turn off the oven?' Mai asked her mother .
4.'where should we park our bikes?' asked Phong and Minh.
5. 'should we call her now?' he asked.
6. ' what should we do to make linh feel happier?' they wondered.