题目

 阅读下面短文，掌握其大意，然后从l6~30各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。A young man was getting ready to graduate from college. For many months he had admired   a beautiful sports   16   in a dealer’s showroom, and knowing his father could well   17   it, he told him that was all he wanted.On the morning of his graduation day his father called him into his own study and told him how   18   he was to have such a fine son. He handed his son a beautiful gift box.   19   but slightly disappointed, the 已知，求x的取值范围．