It has been decided that 后面的从句用什么时态

it has been decided ____they will leave for shanghai.填when还是ifit has not been decided ____they will leave for shanghai.填when还是ifit has not been decided ____these foreign guests will visit our college. It has been decided that 后面的从句用什么时态 为什么是has not been decided 24.It has not been decided ___ they will leave for New York.A.when B why C that When and where to have the party( )yetA has not been decided B have not been decided C has not decided Dhave not decided --------for several times,we decided not to do it again.A.having scoldedB,having been scoldedC,she has been scoldedD,since she was scolded是哪一个,为什么? it ____ whether he will go on with his work in the school.a/ has not been decidedb / has not decided原因 it has not been decided --the sports meet will be put off a whether b that 我觉得选b因为如果选a的话 是否延期这个本身就没被决定 如果再加上not been decided 用现在完成时被动语态改写下面句子.example:the government has decided to give everyone free computer trianing during the holidays.→it has been decided to give everyone free computer trainong during the holidays (by the government)1.th when and where to go for the on-slary holiday___yeta:are not decided b:have not been decided c:is not being decided d:has not been decided Howand when to leave for Yunnan()yet　A are not decided Bhave not been decided Cis not being decideD has not been decided it has been since.用法 It has been in my it is/has been= It's has been accepted it has long been assumed The problem ______ it is right or wrong has not yet been decided.a.whether b.that如题,名词性从句,选哪个?为什么? When to hold the meeting has not been decided yet.我想知道been后面接 decided是什么意思