问
He has arrived late ____. A. as usual B. as usually C. like usual D. like usually(Nelson, 300B) 我觉得空白处应当填个状语，因此应当填 as usually.
答
很多中国学生认为这里应当用副词 usually, 这是中国学生易犯的一个错误。英语里并没有 as usually 的说法, as usual 是个固定短语, 它完全可以充当状语:
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As usual, he arrived last. (McArthur) 跟往常一样, 他是最后到达的。
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This Sunday, as usual, Mrs. Martin will go to church. (Priestley) 跟往常一样, 马丁太太这个星期日将去教堂做礼拜。
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Oh, Millicent is talking about herself, as usual. 哦！跟往常一样，米利森特又在谈论自己了。
as we know it 见 as