填空题 No matter how hard we try, we can at 1 do only half as much as last year.
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【正确答案】 1、best    
【答案解析】解析: No matter(有关系) how hard we try, we can at best(充其量,至多)do only half as much as(差不多/和……一样多)last year. 无论我们怎样努力,我们充其量只能做去年的一半