______ riding shared bikes（共享单车）is an environmentally friendly way to travel，man

题干

______ riding shared bikes（共享单车）is an environmentally friendly way to travel，many of the bikes are thrown everywhere.

A．Although

B．As

C．Unless

D．Until

上一题下一题 0.65难度单项选择更新时间:2018-11-28 01:58:06

小学学科试题库

初中学科试题库

高中学科试题库