今日錯題測驗-初等/五等/佐級◆英文-阿摩線上測驗

100分

模式:今日錯題測驗
科目:初等/五等/佐級◆英文

1(A).

You need to _____ your cell phone when you are on board a plane.
(A)turn off
(B)turn down
(C)turn on
(D)turn up

完全正確!