5. I've been trying to, but I don't think I'm up to this job.
我一直很努力，但我覺得我無法勝任這個工作。
還能這樣說：
I have been working hard, but I feel I am not capable of this job.
I am on the job all the time, however I am little qualified for this job.
應用解析：
up in the air 掛在空中（懸而未決）

6. The job is out of my major.
這項工作不屬于我的專業范圍。
還能這樣說：
The job is beyond my major.
The job is not related with my major.
應用解析：
job title 職位名稱；
job step 作業步驟；
pull a job 搶劫

7. I wish to get into the advertising business.
我希望在廣告業方面發展。
還能這樣說：
I hope to take on the advertising business.
I would like to develop in the advertising business.
應用解析：
talk business 談正經的，說正經話

8. I quit just because I see no chance of advancement.
我辭職是因為我沒有升遷的機會。
還能這樣說：
The reason why I resign is that there is no opportunity to promote.
The reason I leave the company is that I have no chance to get promotion.
諺語：
Monkey see, monkey do.
東施效顰。