(   ) 10. Unless we can completely get rid of all the poisonous food in the market, all the
measures we have taken will be        .

A. in trouble    B. in detail C. in vain    D. in debt 

10. C考查介詞短語辨析。in trouble有麻煩;in detail 詳細(xì)地;in vain徒勞地;in debt負(fù)債。句意：除非我們能完全在市場上消除有毒食物，否則我們所采取的措施都是徒勞的，

題目來源：高考丟分題英語 > Unit 2 Healthy eating

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