___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

____ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem. 

A. That    B. What   C. In spite of what   D. Though what

___has recently been done to provide more buses for the people ,a shortage of public vehicles remains a serious problem .

 A.That                  B.What                C.In spite of what    D.Though what

_______ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.

A. That              B. What              C. Despite what       D. Though what

____ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.

A、That B、What C、In spite of what D、Though what