附加题(选答,共10小题,每道题1分) 1. Not having a good command of English can be a serious ________ preventing you from achieving your goals. 2.
He didn't believe it was true until he _________ the job which he had dreamed of.
Is it only when you fail _________ you will be aware of your mistakes?
The young man was ________ of stealing money from the company in order to buy an iphone
Chinese GDP has been growing steadily year by year, _________ second in the world now.
You can go out, _________ you promise to be back before 11 o'clock.