—It's fast．but not safe．

    If you are lost in having some {#blank#}1{#/blank#}（问题）, it might be a good idea to ask for information or help, so it is important to know how to ask for information {#blank#}2{#/blank#}（礼貌地）and properly.

    Usually, people change the way they speak when they talk with different people. It {#blank#}3{#/blank#}（多数）depends on the person you are speaking to or your relationship with them. {#blank#}4{#/blank#}（有时）, when you know the people very well, you may talk more {#blank#}5{#/blank#}（直接）to them. However, if you don't know them very well, it might be better to speak {#blank#}6{#/blank#}（用）a more polite way like Excuse me, Mr. West, could you please …? What's more, in some situations we might need to spend more time {#blank#}7{#/blank#}（引导）into a question using such {#blank#}8{#/blank#}（例子）as Excuse me. I {#blank#}9{#/blank#}（想知道）if you can help me… or I'm sorry to trouble you, but… before asking for help.

    In a word, learning about etiquette（礼仪）is just as important as learning the language itself. And being more polite to {#blank#}10{#/blank#}（其他人）might help you when you are in trouble.