Questionsofthiskind________difficult

发布时间：2020-07-11 08:30:53

Questions of this kind ________difficult ________.













A.is; to answer












B.is; to be answered











C.are; to answer











D.are; to be answered

网友回答

C解析Questions of this kind（那种问题）的谓语动词看questions; be difficult to do是主动表被动。
以上问题属网友观点，不代表本站立场，仅供参考！