1.The book is on Lily's desk.------ it is hers.
A.may be
B.maybe
C.can
D.Might
2.Do you know who the pen ------? Sorry,I don't know.
A.belong
B.belong to
C.belongs to
D.belongs
3."-Must i finish the work today?"
- "------------."
A.Yes,you need
B.No,you mustn't
C.No,you needn't
D.Certainly not