This pair of jeans looks nice Sandy because she looks very nice blue.A on;in B in;on C f

问题补充：

This pair of jeans looks nice Sandy because she looks very nice blue.

A on;in B in;on C for;on D to;in

答案：

解析：考察介词用法。英语中表示某件衣服在谁身上用on，表示某人穿着某种颜色的衣服用in。故选A。