【W(wǎng)hen 】do you usually have peopraphy?On Monday.What day is it today?It's[].a monday b summer c November11th d 5：00amA Monday 星期一( 問星期）Do you have history [] the afternoon of monday?on具體到某一天或某一天的上午/下午/晚上用ONThe students are [ ] school.at固定用法：at school 在學校溫馨提示：你的追問已夠三次，先采納再問好嗎？否則你會被系統(tǒng)扣財富的。