阿摩線上測驗
7. It is dangerous to use a cellphone up in a plane. So remember to__________ before you get on
the plane.
(A) find it out
(B) turn it off
(C) put it down
(D) give it up
答案：登入後查看
統計： A(14), B(260), C(25), D(13), E(0) #3149084
統計： A(14), B(260), C(25), D(13), E(0) #3149084
