Notasingletree________forfirewood

发布时间:2020-07-27 00:37:02

Not a single tree ________ for firewood so far.A.they cut downB.cut they downC.did they cut downD.have they cut down

网友回答

D解析导解:not放在句首,应倒装.时间状语为so far时,应用现在完成时.
以上问题属网友观点,不代表本站立场,仅供参考!