I was at a loss what to do.I have forgot which way to take.

I was at a loss what to do.I have forgot which way to take. I was still at a loss what to say这里at a loss做什么成分 为什么可以直接跟What to say I was a at a bit of a loss SOS!at a loss后面可以加名词吗?When I saw that the house was on fire I was at a loss+what to do这种表达可以吗?at a loss后面可以再接名词（或名词性从句）吗?还是表达成：at a loss of what to do? I am qnite at a loss what to __Faced__with the embarrassing situation,i was also at a loss about what to do.为什么不能填Being faced My grandmothers eightieth birthday was approacing and i was at a loss.完 英语 at a loss 与 at loss原来一直认为是有 at loss 这个短语 如 I `m at loss which to buy.可高考总复习上关于loss的归纳上却出现了 at a loss,如 I am at a loss what to do.和上面一样的结构 .两者等同么?没把 英语提问：Tom was at a loss what to say.at a loss在这里充当什么成分?what to say充当什么成分? The driver was ___(complete)at a loss of what to do after the car accident I am at a loss what to do 中what to do 做什么成分 天龙八部出现i was a at bit of a loss,是什么意思怎么样才能玩起来啊 at a loss for what to do ,at a loss what to do都可以吗? I'm really at a loss! 1.The woman was at a loss what to do as she was frightened by the gun of the attackers. I'm at a loss as to what to do and feel lost 这是啥意思?英译中I'm at a loss as to what you mean by saying so! I’m completely at a loss the know what to do next,what should I do then?