has recently been done to provide more buses for the people ,a shortage of public vehicles remains a serious problem . w.w.w.k.s.5.u.c.o.m
A. That
B. What
C. In spite of what
D. Though what
网友回答
A. That
B. What
(答案→)C. In spite of what
D. Though what
解析：“ has recently been done to provide more buses for the people”在句中做让步状语,而D.Though what错误,因为,一个单一的从句不能用两个连词引导.句意:尽管在为人们提供更多公交车这件事上,投入了很多,但是公交工具的缺乏,仍然是个问题.