___Lily___Sam like popular songs,so they went to Jackie Chou

___Lily___Sam like popular songs,so they went to Jackie Chou's concert together last night
A Both and B.Either or C.Not only but also D.Neither nor
May I do the rest of the work tomorrow?
Yes,of course.you ___finish it today
A.must B.mustn't C.can't D.needn't