一、单项填空
1．While income worry is______rather common problem of the aged，loneliness is another problem that ______ aged parents may face.
A．a；/ B．the；/
C．a；the D．the；the
解析：考查冠词的用法。句意：虽然收入的担忧是老年人普遍存在的一个问题，而孤独是老年人可能面对的另一个问题。第一个空用不定冠词表示泛指与后句的another相对应；parents是复数名词表示泛指，因此其前不用冠词。
答案：A
2．Jack came from a poor family，so his pa rents had to ______ a lot to pay for his education.
A．accuse B．qualify
C．purchase D．sacrifice
解析：考查动词词义辨析。sacrifice sth.to do “以牺牲……做某事”；accuse常与of连用，表示“控告”；purchase“购买”；qualify“使合格，使具备资格”。
