After gradual declension down to about 39hours in 1970, the
workweek in the United States has steadily increased to the point that the average worker now puts in an estimated 164 extra hours of paid labor a year.
(A) After gradual declension down
(B) Following a gradual declension down
(C) After gradual declining down
(D) After gradually declining
(E) Following gradually declining
答案為D
declining在這應該是動名詞的形式
而修飾動名詞(名詞)的不是應該是形容詞嗎?
OG解釋卻應該是要用副詞
是我搞錯了哪個部分?還是本來觀念就有誤呢?謝謝