Without this year’s Nobel Prize in physics winner Charles Kao’s idea of fibrotic（光纖的）communications, the “modern” telephone and Internet _________impossible．
A．will beB．were to beC．should beD．would be
D
通過(guò)對(duì)Without this year’s Nobel Prize in physics winner Charles Kao’s idea of fibrotic（光纖的）communications的理解可知這是一個(gè)虛擬語(yǔ)氣的句子，主句應(yīng)選擇情態(tài)動(dòng)詞would，所以答案D。
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