题目

以长为13cm、10cm、5cm、7cm的四条线段中的三条线段为边，可以画出三角形的个数是（     ）(A)1个   (B)2个   (C)3个   (D)4个 答案：C；选择适当的单词填空。Danny: Hi, Ken. Is 1._____ your walkman?Ken: Let me see. No, it 2._____.Danny: 3._____ walkman is this?Ken: Sorry, I don’t know.Danny: Are 4._____ your pencils?Ken: Oh, yes, they are. Thank you.Danny: You are welcome. But whose walkman is this?Ken: You can ask Ann. Maybe she knows.Danny: 5._____ you.