are very popular with people all over the world, but do you know who was it that
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______ are very popular with people all over the world, but do you know who was it that invented ______ telephone?
A.The telephone; 不填
B.Telephone; a
C.The telephones; the
D.Telephones; the
试题答案
D
第一空用telephones表示一类事物；发明物前一般要加定冠词the。