---What does your father do? --- He is .
A. a teacher
B. old
C. watching TV
Din a hospital
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(答案→)A. a teacher
B. old
C. watching TV
D. in a hospital
解析:本题的问句为What does your father do?,可知答语为表示某人职业的词,其中A为教师,符合题意,而B为形容词,old不能回答职业,C为现在分词,也不能回答问句,D 为介词短语,不能回答问句内容。故选A