[問題]PP-test1-Q4(structure)

[SL320]

問題, 4
Perhaps the most significant postwar trend was the decentralization of cities throughout the United States,_____ when massive highway-building programs permitted greater suburban growth.
a. and accelerated a phenomenon
b. a phenomenon that accelerated
c. accelerating a phenomenon which
d. the accelration of which phenomenon
answer: B,
我的問題是,perhaps 不是連接詞,那這個句子不就是 run-on sencentence. thanks!

[micki]

標題格式不對,請更正.

格式請參考置頂的部份.

[duck]

perhaps 是副詞
而a phenomenon ...是來增加解釋之前the decentralization of cities 的同位

[SL320]

thanks!