根据短文内容及首字母填空，填写所缺单词，使短文意思完整。
Every year, November 21 is World Hello Day. On this day, all you have to do is to say hello and give a good day greeting(问候) to at least ten people you meet! Of course this can be family and f{#blank#}1{#/blank#}, but be brave to strangers(陌生人). It started on November 21, 1973. The meaning(含义) behind it is : Say hello and stop war(战争).
S{#blank#}2{#/blank#}hello to someone can make a lot of difference(不同). For example, a small thing l{#blank#}3{#/blank#}a greeting can mean a lot to shy(含羞 
) people. Because they find it hard to t{#blank#}4{#/blank#} with people. A hello to a stranger is also a small thing, but through it we can make the w {#blank#}5{#/blank#} a better place.
In China, people u{#blank#}6{#/blank#} say "Ni Hao." when they meet each other. How do people say hello to each other in English-speaking countries? You may have some i{#blank#}7{#/blank#} in your mind(头脑). People usually say, "H are you?" You can answer, "I'm fine," "Very good, thank you," or "Not bad, thanks." You can also ask "And you?"
In the UK, b{#blank#}8{#/blank#} good friends, they say, "You all right?" "I'm good. Any plans (计划) for the weekend?" People also say "How's it going? " B{#blank#}9{#/blank#} it's not a question. It just means hello. People often answer, "Good," or "Not bad." Another popular greeting is "Hey, boy." But it is usually among boys. Girls may say "Hey, g{#blank#}10{#/blank#}."
In the world, people use at least 2,796 languages to say hello to each other.
