【推荐3】During the tank sweeps, Maya had been swimming playfully, but now the dolphin stopped suddenly and swam to the back part of the tank where the filter (过滤) box ________________ (locate). (所给词的适当形式填空)

【推荐1】It is reported that the class of forty students ________ the earthquake 11 years ago, who are the only ________ of their school in the disaster. They are very grateful for their lucky ________(survive). (所给词的适当形式填空）