题目

已知等比数列的前项和为，公比，，则          ． 答案：3        IV.补全对话(10分)从方框中选择最佳选项完成对话，有两项多余。   A. They were made in America.   B. They are made by hand.   C. They are really cool!   D. Oh,Tm sure she'll love them.   E. They are nice,aren’t they?   F. What a pity!   G. What are they made of?A： Hi,Kate. I bought two pairs of jeans for 30 dollars last weekend.B：Oh,really? Sometimes the cheap ones are made of bad materials. 1 A： A hundred percent cotton. They are nice and soft.B： Where were they made?A： 2 B： Oh,good. By the way,where did you buy the earrings? 3 A：Oh,I got them in Korea. 4  B: Yeah. Why don't you wear them?A： Well,Til give them to my best friend for her birthday.B： 5 A：I hope so.1.  2.  3.  4.  5.