During Roosevelt's years in office, Black Americans began voting for Democrats rather than Republicans in national elections, but Black support for Democrats at the state and local levels developed only after when civil rights legislation was supported by Harry Truman.
(A)developed only after when civil rights legislation was supported by Harry Truman
(B)developed only after when Harry Truman supported civil rights legislation
(C)developed only after Harry Truman's support of civil rights legislation
(D)develops only at the time after the supporting of civil rights legislation by Harry Truman
(E)developed only after there being Harry Truman's support of civil rights legislation
Ans:C
OG解釋中說到after when is unidiomatic和at the time after is awkward
想請問以後是不是看到after when 跟at the time after都可以刪掉阿