2. 外语
  3. Six months ago the World Health Organization recommended that cigarette smoking and the use of plywood and particle board ______

Six months ago the World Health Organization recommended that cigarette smoking and the use of plywood and particle board ______

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问题 Six months ago the World Health Organization recommended that cigarette smoking and the use of plywood and particle board ______ in enclosed areas.
选项 A、be restricted
B、should restrict
C、will be restricted
D、must be restricted
答案A
解析 recommend后接的宾语从句要使用虚拟语气“should do...”，should还可以省掉。
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专业英语四级

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