你想知道朋友说的人是学生还是老师,你问:A.Student or teacher? B.Student and teacher.C.Boy or girl?
看病 A.see a doctor B.be a doctor
doct__ A.er B.in C.or
c__nt A.ou B.uo C.oa
w__r A.ea B.ae C.oe
ex__cise A.er B.re C.ee