at a loss what to do She is at a loss whether going out with them or ...

at a loss for what to do ,at a loss what to do都可以吗? I am at a loss what to do 中what to do 做什么成分 at a loss what to do She is at a loss whether going out with them or ... Visitors may be at a loss as to what to do in a foreign environment. I'm at a loss as to what to do and feel lost I was at a loss what to do.I have forgot which way to take. 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 The driver was ___(complete)at a loss of what to do after the car accident I’m completely at a loss the know what to do next,what should I do then? I am qnite at a loss what to 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? 1.The woman was at a loss what to do as she was frightened by the gun of the attackers. __Faced__with the embarrassing situation,i was also at a loss about what to do.为什么不能填Being faced 英语翻译When their company went bankrupt,some of them were at a loss what to do next. Sorry,this is my first time to make an IDD,call I am ____a.at a loss how to dob.at a loss to do c.at a loss what to dod.on a loss选C 为什么?需要解析和翻译 many people are at a loss as to what to do in case of an earthquake. 那个as to是什么玩意 he is at a lossHe is at a loss what to do.和 he is at a loss as what to do 哪句正确?是不是两句都没问题?如果不加as,what to do 在这里语法上怎么解释?如果加AS,语法上又怎样解释? 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?