I decided to find out ------was going on .A .what B which C .who D .that为什么

I have decided not to find a girlfriend,I'll wait for you I decided to withdraw my I decided to find out ------was going on .A .what B which C .who D .that为什么 We have decided not to go.It is a difficult decision,but we___(not change)ou So difficult __ it to work out the problem that I decided to ask Tom for advice.A.I did find B.did I find C.I have found D.have I found Well,I decided to go with you. I decided (walk)to the park he calls to find ou twhat people like to do in the evening变为一般疑问句 i cant to find to i decided to sing rather than dance同义句i decided to sing_ _dancing I decided to sing rather than dance.（改同义句变成I decided to sing__ __dancing) I decided to sing rather than dance.（改同义句变成I decided to sing__ __dancing) So difficult __ it to work out the problem that I decided to ask Tom for advice.B.did I find D.have I found 这个选b 请问是不是如果把d中的have 变成had ,d也对 I decided to buy a car等于I decided ___ ___ a car I.have.to.many.find. I decided to write rather than (to) telephone.为什么decided不是原型? 英文这句话对吗?The MAY DAY decided to find a place to watch the people... Decided to turn back to you,find their own happiness,rest assured,we will be happy