what could happen, he did whatever he liked to and nobody could stop him.
A. In case of
B. Regardless of
C. As a result of
D. In addition to
网友回答
A. In case of
(答案→)B. Regardless of
C. As a result of
D. In addition to
解析：考查介词短语：A. In case of 以防，万一，B. Regardless of不管，不顾C. As a result of 因此D. In addition to此外，句意：不管发生什么，他都会做他喜欢的事情，没有人可以阻止。选B。