问题
选择题
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
答案
答案：B
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。