The expert ____ health has discovered that five patients suffering the same disease are similar ____ age

Are you happy with your new computer? —– No, it is _______ me a lot of trouble.

31—What’s the matter with Christine—A letter from her parents inCalifornia________an attack of homesickness

A fight _________ between the couple, which made their son break away from his family.

I want to have a short talk with you.Could you spare a few minutes________?[ ]