题目

Why do you always drive to work _______ you could easily take the bus?    A. because                  B. though         C. once                  D. when 答案：D 解析: 略世界最大半岛阿拉伯半岛所在板块是（ ）A．印度洋板块 B．大西洋板块C．太平洋板块 D．亚欧板块