He was sentenced to death ________ what he had stolen from the bank．
A.That
B.since
C.because
D.because of
网友回答
D解析一般说来，because作为从属连词，用以引导原因状语从句时，其后应是一个不含有引导词的句子，而不能是what引导的从句。另一方面，本题中的what he had stolen＝the thing(s)that he had stolen，也就是说，这个what从句本质上说，它相当于一个名词，所以此题应选because of。