我勒个去,没有划线部分...好吧,那我们这样~1. 如果I是划线部分,那问题就是:Who went fishing on Saturday afternoon ?2. 如果went fishing是划线部分,那问题就是:What did you do on Saturday afternoon ?3. 如果Saturday afternoon是划线部分,那问题就是:When did you go fishing ?好吧,就是这样的啦~