After a silence of several minutes为什么要用a?

After a silence of several minutes为什么要用a? 高中英语after a journry of several months,columbus reached() he after a new minutes是什么意思 Silence is a kind of suffering A Field of Silence的翻译 He pondered for several minutes before (making) a decsion.ma The meeting ______just for several minutes.A.has begunB.has Minutes later;in a few minutes;in no minutes;minutes after的区 为什么不选其他.There was —— of complete silence.A an instant B hour a+couple+of+minutes是什么意思 Several will you also love me after a hundred years? After a number of