Do you know how to make a phone call？Let me 1 you. First, you must 2 the right number. If(如果) you're not sure about the 3, you can check it. Second, you should 4 the person some time to answer the phone. Please 5 patient(耐心的)and wait for a few more minutes. Third, you must speak clearly. Don't shout(喊)6 mutter(嘀咕).And your mouth should be one inch(英寸)away 7 the phone. Fourth, after 8 "hello", you should tell the person your name and who you are. Fifth, if the person isn't 9, you should let the person who is answering the phone take a message for you.10, please put the telephone gently(轻放电话).It's not polite to throw the phone.