____,television has played an important role in modern life.A.As long as it is known B.What is known to allC.Since it is known D.As is known to all我感觉答案应该是选D,因为可以解释为As作主语引导定语从句位于句首,谓语动

____,television has played an important role in modern life.A.As long as it is known B.What is known to allC.Since it is known D.As is known to all我感觉答案应该是选D,因为可以解释为As作主语引导定语从句位于句首,谓语动
____,television has played an important role in modern life.
A.As long as it is known B.What is known to all
C.Since it is known D.As is known to all
我感觉答案应该是选D,因为可以解释为As作主语引导定语从句位于句首,谓语动词为系动词,很合适.C应该用过去式,B是个主语从句,放这里句子成分不合法.
没弄懂A是个什么情况.

____,television has played an important role in modern life.A.As long as it is known B.What is known to allC.Since it is known D.As is known to all我感觉答案应该是选D,因为可以解释为As作主语引导定语从句位于句首,谓语动
你的选择是对的,答案为D.A中的As long as是个固定短语,意思是“只要”,也可以说so long as.A项的意思是“只要众所周知”,不和题意.排除掉. 本句句意：众所周知,电视在现代生活中起着重要作用.希望能帮到你,如满意,请采纳为“满意答案”.

A中as long as 意为“只要”，是条件状语。
希望能帮到你

A 众所周知

as long as 是只要的意思 A选项没有这个说法 这题答案是选D