Good afternoon，Doctor###What's the matter with you###How long have you been like this###What should I do###You're welcome

【解答】66答案：Good afternoon，Doctor；该题考查英语交际；根据答语Good afternoon，Jane；结合语境可知这是医生对病人的问候语，故上句应该也是对医生的问候语；故填Good afternoon，Doctor；
67答案：What's the matter with you？该题考查英语交际；根据答语I've got a headache and a cough可知上句是医生询问病人的病情．即"你怎么了"？What's the matter with sb．是固定的句型，故填 What's the matter with you？
68答案：How long have you been like this？该题考查英语交际；根据答语It started this morning．推知上句是询问病人的病情持续多长时间了；故填How long have you been like this？
69答案：What should I do？该题考查英语交际；根据答语You'd better take these pills and drink more hot water．可知上句是病人询问自己该怎么做；故填What should I do？
70答案：You're welcome；该题考查英语交际；当别人对自己表示感谢时，应回答You're welcome不用谢；根据上句Thank you可知表示感谢，对方应回答You're welcome；故填You're welcome．