完型填空。阅读下面短文，掌握其大意，然后从以下题所给的A、B、C、D四个选项中，选出最佳选项。
Mrs. Ball had a son. His name was Mick. She __1__ him very much and as he was not a __2 __ child, she was always __3__ that he might be ill, __4__ she used to take him to see the best __5__ in the town four times a year to be looked __6__.
