吹哨子是blow whistle 但有没有whistle blow这个用法,有个练习上写着,但不应该是被动吗?

"The whistle blew and they began running" 不对! 因为 whistle 不可能自己响或吹... 正确: 1. They began to run as soon as the whistle was blown (by the teacher). 2. As soon as the whistle was blown, they started/began to run. 3. They began to run after the teacher blew the whistle. 4. A man fell into the Mount St. Helen's crater and blew his emergency whistle to let rescuers know he was alive and his location