Why do you always drive to work you could easily take the bus?A. becauseB. thoughC. onceD

问题补充：

Why do you always drive to work you could easily take the bus?

A. because

B. though

C. once

D. when

答案：

A. because

B. though

C. once

(答案→)D. when

解析：连词辨析。 A. 因为 B. 尽管 C. 一旦 D. 当……时；既然。句意：既然你能容易的就坐上公交车，你为什么总是开车去上班？选D。