【单选题】Pool Watch Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble. The Royal Society for the Prevention of Accidents says that on average 15 people drown in ...
【简答题】句型转换。 1. He used to go swimming in this river. (改为一般疑问句) _____ he _____ to go swimming in this river? 2. He used to be afraid of the dark . (对画线部分提问) _____ _____ he _____ to be afraid of? 3. I have to...
【单选题】Pool Watch Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble. The Royal Society for the Prevention of Accidents says that on average 15 people drown in ...