what,can,you,do？根据实际情况回答

Can you play pipa?  (注：这里是要求你做否定回答的，所以不是Yes,i can 而是NO,i can't)

He often plays football on sunday.  (改为一般疑问句What does he often do on Sunday?)

She is young and funny.  (对划线部分进行提问  "What is she like?" ）

What can you do?   ( "你会做什么"  然后根据你的实际情况来回答）

（ I can play the guitar.我会弹吉他）

        can you 为疑问语气，常用于疑问句中
       you can 为陈述语气，单独不可作为句子

  5. Is there a river in the park. ( 作肯定回答 "There is a river in the park.")

如果哪方面错误的，望大神们见谅指点