问题补充:
I don’t know who invented telescope, but I think it is most
useful invention.
A. the, the
B. the, a
C. a, the
D. a, a
答案:
A. the, the
(答案→)B. the, a
C. a, the
D. a, a
解析:考查冠词的用法。第一空:发明物的前面必须加the,第二空:泛指一项非常有用的发明,所以用不定冠词a,故选B。
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