If _____ carefully, the experiment will be successful.A.doB.doesC.doneD.doing
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If _____ carefully, the experiment will be successful.A.do | B.does | C.done | D.doing |
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答案
C |
解析
答案选C,可视为if it is carefully done之省略。 【标签】省略 |
举一反三
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