she is often _____blue pants.
问题描述：
she is often _____blue pants.
A.at B.in C.on D.to
答
B
in +表示衣服、裤子等类的词语时候表示“穿着...”
in blue pants 穿着蓝色裤子
句子意思是：她总是穿着蓝色裤子.
若理解请采纳.