用when。既可询问某个时段或时刻,也可询问具体的日期。例如:When are you going home?你什么时候回家?回答特殊疑问句时,不能用yes / no,即问什么答什么,尤其是简略回答。扩展资料:1、特殊疑问句的构成特殊疑问句由"特顷蚂殊疑问词+一般疑问句"构成:How old are you? 你多大了?What's this in English? 这个用英语怎么讲?2、但特殊疑问句陪喊有时也要"特殊解":即如果问的是主语或主语的定语时,这时的特殊疑问句看起来成了"特殊疑问词(+主语)+陈述句"。如:Who's not here today? 今天谁没来?Which pen is red? 哪支钢笔是红色的?1、就主语提问,就把主语换成who,主语是物换成what,其他的词一丝不变照抄下来,句尾加问号。就主语提问是汉语时,永远把汉语句子中的谁、什么看成是三单句子,句子同样不能变疑问,句尾加问号。Tom is playing chess. Who is playing chess?Tom plays chess. Who plays chess?Tom will play chess. Who will play chess?Tom is going to play chess. Who is going to play chess?Tom played chess. Who played chess?Tom can play chess. Who can play chess?The coat on the wall is mine. What on the wall is mine?2、对主语中的定语提问,用which+物名,就主语中的形容词性物主代词提问,用whose+物名,然后去掉划线部分和定语前面的the,其它的词一丝儿不变照抄下来,千万不能变疑问,句尾加问号。3、就谓语和宾语同时提问,就是问“主语干什么”?用what来问,用行为动词do来代替原句子的谓语动词,然后将后面句子变疑问,再加问号。4、1)就宾语提问用what2)就方状提问用how8)就不可数物名前面的不定代词提问用how much+不可数物名9)就电话号码提问用what10)就年龄提问用how old11)就be动词后面的表语颜色提问用what colour3)就地点提问用where4)就钟点提问用what time5)就大时间提问用when6)就数字提问用how many+数字后面的复数物名7)就价钱提问用how much12)就星期提问用what day13)就名词性物主代词提问用whose14)就形容词性雀乱埋物主代词提问用whose+物名然后去掉划线部分,再把剩下的句子变疑问句,接在刚才找出的特殊疑问词后面,句尾加问号。