What made your little sister so delighted?
______ for her progress.
A, Her teacher praised her
B, Her being praised by her teacher
C, Her teacher having praised her
D,She was praised by her teacher
这四个选项怎么区别/
四个好像都行啊 求详细分析，
是名词复合结构题目吗？
答案：B解释：1. 答案必须能代替问句中的what做主语，所以它必须是名词性结构才可以。由此排除AD，它们都使用单句不可，除非在其前加上引导词that充当名词性从句（主语从句）才对。而做主语从句的引导词that虽然不充当成分，但是绝对不能省略。再如：(That he was late) made his teacher angry.3. 而BC都是动名词短语的复合结构，相当于名词。但是，如果用该结构做句子主语时，结构中的逻辑主语必须使用形容词性物主代词或名词所有格形式，而不能使用人称代词宾格或名词普通格。如：Tom being late made his teacher angry. ×Tom's being lat
