题目内容
句型转换.保持意思不变,改写句型.
Our monitor joined the League one year ago.
Our monitor ________ ________ a League member for one year.
答案:has;been
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题目内容
句型转换.保持意思不变,改写句型.
Our monitor joined the League one year ago.
Our monitor ________ ________ a League member for one year.