SORU: verilen paragrafı uygun biçimde tamamlayan ifadeyi bulunuz
Jane: - What is meant by the "body clock"? Malcolm: - Well, the body adopts a routine for waking, sleeping, eating and so on. And that's its clock. Jane: - ---- Malcolm: - I suppose the usual reason is when you go into a different time zone and suffer from what is called "jet lag".