1,Can i have a look( at ) your CD 考察词组have a look at“看一看”
2,I buy a pen(for )2yuan(from )her .“我从她那花了2元钱买了一只钢笔”.
3,I want a pair( of)shoes.“我想要（买）一双鞋.”考察a pair of“一双,一副”