A．he couldn't finish eating it with one bite

　　B．he was very careful with his food

　　C．he ordered more than he could consume

　　D．he wanted to share it with his wife

　　答案　D

　　解析　推理判断题。由文章第四段中"They were used to sharing everything"可推知这对老人共享所有的东西，此时他也给他的妻子分一半汉堡。

　　3．The young man who offered to buy the old couple food was ________．

　　A．impolite B．stubborn

　　C．sympathetic D．doubtful

　　答案　C

　　解析　推理判断题。根据第四至第六段内容可知这位年轻人两次主动要求为他们买饭， 但都遭到了拒绝，可推知这位年轻人很富有同情心。

　　4．From the old lady's answer，we know that ________．

　　A．she was not interested in the food

　　B．the couple suffered a terrible toothache

　　C．the couple did share everything

　　D．she gave an irrelevant answer

答案　C