问题

So absorbed in his work ____________that not a sound ___________.
A:was the president; did she dare to make
B:was the president; dared she to make
C:the president was; she dared make
D:the president was; she did dare to make
B:was the president; dared she to make
C:the president was; she dared make
D:the president was; she did dare to make
正确答案是: