we have Art at at four o'clock,对这句英语at four o'clock部分提问

we have at four o'clock in the afternoon We often have lunch at twelve o'clock.对at twelve o'clock提问._ We have lunch at about twelve o'clock at school.(对划线部分提问,划线部 Can I come at four o'clock? what time?----At four o' clock. We start work at nine o’clock.（对画线部分提问）画线部分是at nine o’clock. I have to get up at seven o' clock .对划线部分提问at seven o' clock We will get to Beijing at 10 o'clock.对(at 10 o'clock)提问 we will meet at 9 o'clock(对at 9 o'clock提问) we went to the park at three o'clock.怎样对“at three o'clock”提问 we will meet at 9 o'clock(对at 9 o'clock提问) ·``~`````~ they have Chinese at ten o'clock 对at ten o'clock提问