[問題]2002年10月 Q36 (structure)

[skull]

The oldest public edifice in W D.C, the White House was originally constructed in the 1790's, also has been rebuilt or extensively remodeled three times since.


Ans 是also,不明瞭....
還有since為何在句尾?


Thank you~

[christina]

二動詞,缺連接詞,所以改成and also

since用法(from webster)

from a definite past time until now
<has stayed there ever since>

[skull]

是不是這樣意思?

自從1790's建立以來,白宮已經大裝修三次了

i57