A.Let me clean the blackboard
B.Let's clean the classroom
C.Let me clean the classroom
--I can't see the blackboard very well.--Perhaps you need ______. ()
A.examining your eyes
B.to be examined your eyes
C.to have examined your eyes
D.to have your eyes examined
A.一张桌子33.5元,一把椅子23元
B.一张桌子36.5元,一把椅子20元
C.一张桌子34.5元,一把椅子22元