Part two: language Knowledge
Section A (15 points)
Directions: Beneath each of the following sentences there are 4 choices marked A, B, C and D. Choose the one answer that best completes the sentence.
21. 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
【解析】选B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。
