1. It’s not a good idea to discipline the class by giving them ______(额外的) homework.
2. His research _______（形成）the basis of his new book.
3. He has ______ (赚) a lot of money this month by working on a part-time job.
4. I hear the concert will be ________(广播) live on TV tomorrow evening.
5. Applying for jobs can be a long and ________(痛苦的)process.
6. She is in a relaxed, _______(自信的)mood.
