---What do you think made Tina so delighted？
---______ the driving test at her first try.A.As she passedB.PassedC.Because of passingD.Passing
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D解析此题中do you think是插入语，what 在特殊疑问句中做主语，所以相应回答部分也要做主语，D项的动名词短语可以做主语 A. As she passed 引导状语从句，做状语C. Because of passing也是原因状语 B. Passed 过去分词短语也不能做主语