A killer whale at Sea World Orlando jumped out of its tank on Wednesday and fatally attacked a worker as horrified visitors .
A. has been looking up
B. looked on
C. had looked off
D. was looking in
网友回答
A. has been looking up
(答案→)B. looked on
C. had looked off
D. was looking in
解析：句意：本周三，美国奥兰多海洋世界的一头虎鲸突然从水池中跳出，将一名驯鲸员咬伤致死，让现场围观的游客惊恐不已。此处意思“围观、观看”，look on有此意。