1 . On hearing the girl __________ (打击) by a truck has been sent to hospital by an ambulance, many people volunteered to donate blood. (根据汉语提示单词拼写)

2 . Generally __________(承认) to be the finest poet in the land, he still lives a low-profile life. (根据汉语提示单词拼写)

3 . The primary school rule states that no child shall be allowed out of the school unless a________ by an adult. （根据首字母单词拼写）