来自宿明学的问题
【急1.Lucys'nameisonthecoverofthebook.It_____hers.A.mustbeB.can'tbeC.need】
急
1.Lucys'nameisonthecoverofthebook.It_____hers.
A.mustbeB.can'tbeC.need


【急1.Lucys'nameisonthecoverofthebook.It_____hers.A.mustbeB.can'tbeC.need】
急
1.Lucys'nameisonthecoverofthebook.It_____hers.
A.mustbeB.can'tbeC.need
A一定,情态动词表判断