Debbie’s smiling face can make her customers feel ______so you have to improve the way _____you deal with your customers. 

Peter is really ____; I don’t think I will get ____ working with him in the same office.

David was bad at his studies, so when I was told he did well in the final exam this time, I found it really ______.

26. The doctors ______his health.

As we know, no matter how        a man is, if he doesn’t learn, he knows nothing.