School starts at 8 o'clock in the morning 改为一般疑问句

求几道初中英语.1、School starts at 8 o'clock in the morning（改为一般疑问句） School starts at 8 o'clock in the morning 改为一般疑问句 School starts at nine o'clock.（改为一般疑问句） "School (starts) at 8 o'clock in the morning"中 为什么“start”要加S School starts at nine o'clock变一般疑问句 School starts at eight o'clock改一般疑问句 英语变一般疑问句School starts at nice in the morning. School starts at 8 o'clock.（改为否定句） Classes begin at 8 o'clock in the morning 的一般疑问句 school stats at nine o'clock改为一般疑问句 The bell rang at eight o’clock {改为一般疑问句} My father has dinner at seven o'clock in the evening.改为一般疑问句