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The businessman recently _________(忙于从事)foreign trade. has been engaged in时态:由前面
The businessman recently _________(忙于从事)foreign trade. has been engaged in时态:由前面
游客
2023-07-30
61
管理
问题
The businessman recently _________(忙于从事)foreign trade.
选项
答案
has been engaged in
解析
时态:由前面的recently决定此处应使用现在完成时。词组:be engaged in(从事于,忙碌于)
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