写出六种时态的特殊疑问句各一句（一般现在,一般过去,一般将来,现在完成,现在进行,过去将来）

一般现在：Who is the monitor?.
一般过去：Where do you find the pen?
一般将来：When will he go abroad for further study?
现在完成：Where have you been these days?
现在进行：What are you doing now?
过去将来：What did he say he will do in the future?
过去进行：What was he doing when you see him?