the bell rang at 9 o'clock(改成否定句.一般疑问句.特殊疑问句）

the bell rang at 9 o'clock(改成否定句.一般疑问句.特殊疑问句） The bell rang at eight o’clock {改为一般疑问句} then start at 9 o'clock（改成一般疑问句） l was in the room at seven o clock(否定句,一般疑问句及两种回答） he starts at 9 o'clock.变一般疑问句和变否定句 I get up at seven o' clock.改为一般疑问句和否定句.(疑问句要回答) I was at home yesterday改成一般疑问句,肯否回答,否定句和特殊疑问句 We call walk all of the Great Wall 改成一般否定句、一般疑问句、特殊疑问句.. he was here at eleven o'clock 怎么改成一般疑问句并做否定回答 Lunch is usually at tweleve o'clock.改成一般疑问句, They have dinner at 10'clock.变否定句,一般疑问句,特殊疑问句.要正确率高的, the bell rang at 9o