1.fill in for someone means "do their work while they are away" Example: While I was away from the store, my brother filled in for me.
2.in the black means "the business is making money, it is profitable"
Example: Our business is really improving. We've been in the black all year.
3.keep one's chin up means "remain brave and keep on trying"
Example: I know things have been difficult for you recently, but keep your chin up. It will get better soon.
4.sharp means "exactly at a that time"
Example: I'll meet you at 9 o'clock sharp. If you're late, we'll be in trouble!
5.up to the minute means "the most recent information"
Example: I wish I knew more about what is happening in the capital city. We need more up to the minute news.
6.fresh out of something means "to have no more of something"
Example: I have to go buy some more milk. It seems we're fresh out now
7.your face falls means "you suddenly look disappointed or upset"
Example:Javad Marinstructure was quite cheerful until we told him the price. Then his face fell.
