Anya: Do we have to wear uniforms to school?
Ben: Yes, we do. Our school rules say we must wear the school uniform every day. But we don't have to wear it on Fridays because we have sports activities.
Anya: Can we use our phones during class?
Ben: No, we can't. The teachers collect them at the start of the day. We are allowed to use them only during break time. You must turn off your phone before entering the classroom.
Yukarıdaki diyaloğa göre, bir zorunluluğu veya kuralı doğru ifade eden cümle hangisidir?
A) Students can use their phones during class.
B) We don't must wear uniforms on Fridays.
C) Students have to wear the school uniform every day.
D) Teachers can't collecting phones at the start of the day.
E) Anya mustn't turn off her phone before class.