称呼别人时有哪些礼仪规范？
参考答案：要注意以下三点：其一，要合乎常规。其二，要照顾习惯。其三，要入乡随俗。
The boys when the teacher came in. So she was very angry．
A．were doing homework
B．were cleaning the classroom
C．were fighting
D．were learning English
进口车辆的车船使用税应在报关进口时由海关代征。（ ）
