you have tried it on you can’t imagine how pretty the new style skirt is.A. BecauseB. Alt

问题补充：

you have tried it on, you can’t imagine how pretty the new style skirt is.

A. Because

B. Although

C. Unless

D. Even if

答案：

A. Because

B. Although

(答案→)C. Unless

D. Even if

解析：根据题干，本句的意思是“除非你试一下，否则你不能想象这种新样式的裙子是多么的漂亮。”“除非”是unless。其他选项都不符合题意。所以本题选C。