We were told not to touch the equipment in the laboratory unless ________.A.allo
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We were told not to touch the equipment in the laboratory unless ________.A.allowed to do | B.allowing to do | C.allowed to | D.allowing to |
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答案
C |
解析
考察状语从句的省略。Unless后面省略了we were.不定式符号to后面省略了touch the equipment.当状语从句的主语和主句主语一致的时候,可以把主语和系动词be一起省略.完整的形式应该是:unless we were allowed to touch the equipment.句意:我们在告知在实验室里不要碰任何东西,除非我们被允许。 |
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