阿摩線上測驗
6.Not long after I got home, the office ceiling ______.
(A) collapsed
(B) collapses
(C) has collapsed
(D) will collapse
答案：登入後查看
統計： A(337), B(32), C(156), D(13), E(0) #1831847
統計： A(337), B(32), C(156), D(13), E(0) #1831847
