题目内容
The single most important factor ____ contributes to success is _____ you do every single day.
| A.that; that | B.which; what | C.which; what | D.that; what |
D
从句子结构分析,第一个空考查定语从句的关系词,因先行词前有形容词最高级修饰且指事物故只用that引导;第二个空跟在be动词后,表明是一个表语从句,用do后缺少宾语,因此只能由what来引导。
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