You must keep the mobile phone off during the meeting.(改为被动语
You must keep the mobile phone off during the meeting.(改为被动语
You'd better--------(keep)off your mobile phone during the c
all the mobile phone must be kept off,这句话中的keep off怎么翻译
Have you felt annoyed when a mobile phone rings during the c
I think I d() my mobile phone during the concert
You should turn off your mobile phone when the plane _______
when the plane take off ,you( )use your mobile phone
when did your father buy you the mobile phone 换为被动语态 when( )
keep,you,grass,must,the,off连词组句
you shuold ____ off your mobile phones .the meeting will sta
we____ use mobile phone when the plane take off
All the mobile phones must be__off before the meeting __