题目

根据对话内容，从方框中选择恰当的选项补全对话，其中有两项是多余的。Shop assistant（店员）（SA）Susan(S)SA: Hello!?S: Oh！I like to buy a skirt for mydaughter. SA: What color does she like?S: Purple.SA: Okay! This purple onelooks nice. It's size S. S: It's nice,SA: What size does she wear? S: Size L.SA: This blue one is Size L.S: SA: It's fifty-eight dollars,but there is a sale today— everything here is at half(一半的) price. S: A. I'lltake it.B.And you just need to pay twenty- nine dollars for it. C.We have skirts in purple for only fifty dollars.D. 本期学校开展“3+N”活动，全校参加乒乓球组的同学有100人，比参加手工剪纸组的2倍少10人，参加手工剪纸组的有多少人？