题目内容
I don’t know who invented _______ telephone, it’s really _______ most useful invention.
| A.the; a | B.the; the | C.a; a | D.不填;不填 |
A
解析
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题目内容
I don’t know who invented _______ telephone, it’s really _______ most useful invention.
| A.the; a | B.the; the | C.a; a | D.不填;不填 |
A
解析