---Someone’s been here. Who it be? It looks like Helen.---It be Helen.She is ill in hosp

发布时间：2020-08-15 02:12:34

---Someone’s been here. Who      it be? It looks like Helen.
---It      be Helen.She is ill in hospital.
A. must; must
B. might; could
C. can; mustn’t
D. can; can’t

网友回答

A. must; must
B. might; could
C. can; mustn’t
(答案→)D. can; can’t
解析：can 常用于表示否定和问句的推测。
以上问题属网友观点，不代表本站立场，仅供参考！