单项选择题
A.change his energy cycle B.get up earlier than usual C.overcome his laziness D.go to bed earlier
A.he is a lazy person B.he refuses to follow his own energy cycle C.he is not sure when his energy is low D.he is at his peak in the afternoon or evening
A.Unawareness of energy cycles. B.Familiar monologues. C.A change in a family member's energy cycle. D.Attempts to control the energy cycle of other family members.