It's cold here.-------- I switch on the heating?A.Should B.Shall C.Would D.Will答案为什么是B

It's cold here.-------- I switch on the heating?A.Should B.Shall C.Would D.Will答案为什么是B
It's cold here.-------- I switch on the heating?A.Should B.Shall C.Would D.Will
答案为什么是B

It's cold here.-------- I switch on the heating?A.Should B.Shall C.Would D.Will答案为什么是B
shall一般只用于第一人称（we,I)使用表将来
此处问句中是一种委婉语气征求建议（例如WiIl you...;Shall I/we...)
所以比will,should（should I,我应该.一般是下属和上属请求许可（学生和老师,职员和上级,而题中没有具体明显体现这种情境设问,此处不一定是请求许可,听听意见,可能54他~）选项更好
另外Would表委婉一般用Would you..(你能/你想.委婉请求不是征求建议） 一般没有Would I...