名词性从句It is not clear_____the high price will soon be controlled.A.if B.whether为什么选whether,不选if.引导主语从句不是只有放在句首才不能用if吗?本句没有放在句首啊?

有关英语名词性从句的改错.Whoever was responsible for the accident is not yet clear.Whoever was responsible for the accident is not yet clear. It is by no means clear the president can do to end the strike.A.how B.which C.that D.what为什么不用which,不能是定语从句吗,怎么区别名词性从句和定语从句? it is+adj.+that从句 是名词性从句吗 是哪一类从句 It is 开头如何判断定语从句或名词性从句形式主语 it not clear that this is not 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? 名词性从句类别判断It is sure/certain that +.这种句型到底是宾语从句还是主语从句? 定语从句属于名词性从句吗?为什么?名词性从句都包括什么?When we will go is not decided 属于什么从句?When we will go is not decided 名词性从句 下述句子属于什么名词性从句,理由?Since it is believe that strong smell can affect the senses 名词性从句It is not clear_____the high price will soon be controlled.A.if B.whether为什么选whether,不选if.引导主语从句不是只有放在句首才不能用if吗?本句没有放在句首啊? 英语语法名词性从句 什么是名词性从句 名词性从句语法 名词性定语从句 什么是名词性从句? 什么事名词性从句 名词性从句是什么? 英语名词性从句