the illness pneumonia, Jackson couldn’t go on teaching.
A. As a result
B. As the result
C. As result of
D. As a result of
网友回答
A. As a result
B. As the result
C. As result of
(答案→)D. As a result of
解析：考查介词短语：As a result of因为As a result因此，句意：因为肺炎病，Jackson不能继续教学了。选D。