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     People can improve the quality of their lives (life) and their relationships with good communication skills. But, if one person cannot send the right message to another, there may be an _________(argue). Because of problems in communication, a _________(marry) may get into trouble. What about the business world? If communication __________(go) wrong, there can be all kinds of problems, from loss of sales to the _________ (fail) of companies.
     So what is _________(effect) communication? You may wonder. To put it_________ (simple), it means that a receiver gets the exact message from the sender. In other_________(word), if you tell someone your phone number and they get it correctly, you have_________ (succeed). If, however, you give your phone number but the other person _________(get) it wrong, then there is a problem. It can be the sender's fault or the receiver's fault. Or maybe both. Such type of wrong _________ (understand) is called barrier in communication.