Management theories are ____ but the method of doing business is different.

want to see Mr. Johnson on Fridaymorning, make sure he is ______ ahead of time.

古诗文中，用典较为常见，下列对相关典故所做的解说，错误的一项是（ ）

Can you find out the differences ____ the first picture____ the second picture

Friends are those__________ makeyou smile，alwaysopen their hearts to you and encourage you to succeed