阿摩線上測驗
二、文法測驗（請在下列各題中，選出最適當的答案） 10. Albert worked very hard to prepare for his presentation and all his efforts have _____.
(A) paid off
(B) turned off
(C) put off
(D) dropped off
(A) paid off
(B) turned off
(C) put off
(D) dropped off
答案：登入後查看
統計： A(578), B(72), C(82), D(95), E(0) #1899778
統計： A(578), B(72), C(82), D(95), E(0) #1899778
