✔ 最佳答案
1. frustrated/critical------We are frustrated about the traffic accident since the girl has been in critical condition.
2. optimistic/take part in/competition------People should be optimistic when trying to take part in the competition.
3. inspirational/regain-----He is trying to regain readers' confidence on him by presenting the inspirational piece of writing over the newspaper.
4. encourage/positive attitude-----Parents should show their positive attitude by trying to encourage their children in telling their problems when having difficulties.
5. anxious/aggressive-----He was so anxious to get home early, that made him drive in a more aggressive way.
6. car accident/paralysis/give up-----He has been suffering paralysis of his right leg since the car accident that he has decided to give up his career.
THE GRAMMAR IS CORRECT.