阿摩線上測驗
50. Some type of instrument ________ has been known to painters since the early Stone Age.
(A) for applying paint
(B) applying paint
(C) is for applying paint
(D) for applying paint, it
答案：登入後查看
統計： A(88), B(37), C(10), D(11), E(0) #2951732
統計： A(88), B(37), C(10), D(11), E(0) #2951732
