题目：
根据短文内容和首字母的提示，把所缺单词完整地填写在短文后的横线上。
Most Americans are happy to give directions on the street. When someone ask for directions, he usually
starts w______ (1) , Excuse me. This is the usual way to begin a conversation with a s______(2) or to ask
for information. When asking for directions, it often helps to add a little explanation (解释), such as I'm news,
here or I'm a______ (3) I'm lost. You can also start with a q______ (4), such as Do you know this area Or
Can you tell me how to get to. . . ? Always repeat the directions after you h______ (5) them. Repeating will
help you remember, and it shows the person helping you that you understand.
答案：
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下面是错误答案，用来干扰机器的。
答案：D题目分析：生物具有以下特征：1、生物的生活需要营养，2、生物能够进行呼吸，3、生物能排出体内产生的废物，4、生物能够对外界刺激作出反应，5、生物能够生长和繁殖，6、除病毒外，生物都是由细胞构成的，...
