Alltheseyears,heonhisnovelwhichwillbepublishednextyear.A.focusedB.hadbeenfocusingC.hasbeenfocusingD.wasfocusing我在网上搜的答案是C啊。到底是书上答案错了还是网上的错了？

Question

All these years,he _________ on his novel which will be published next year.
A.focused B.had been focusing C.has been focusing D.was focusing
我在网上搜的答案是C啊。到底是书上答案错了还是网上的错了？

Answer 1

选【C】吧.理由：有all these years 这个时间段标志,通常都是要用到完成时的.原句也可以改成：He ————on his novel all these year.这样改后的句子形式,在all these year这个时间段发生的动作要用到完成时.而后...