During Roosevelt's years in office, Black Americans began voting for Democrats rather than Republic in nation electons, but Black support for Democrats at the state and local levels ( developed only after when civil rights legislation was supported by Harry Turman ).
A. developed only after when civil rights legislation was supported by Harry Turman
B. developed only after when Harry Turman supported civil rights legislation
C. developed only after Harry Turman's support of civil rights legislation by Harry Turman
D. develops only at the time after the supporting of civil rights legislation by Harry Turman
E. develops only after there being Harry Turman's support of civil rights legislation
答案是C,错选了B。感觉C说的好绕,B的错误是only after 和when连用吗?麻烦老师讲解。