写体育活动,用can you run?这里用run好像有点行不通,要怎样呢?

写体育活动,用can you run?这里用run好像有点行不通,要怎样呢? can you run Can you run it 怎样填.I can run.Can you run t——?“ run和run off用法上有什么区别吗?有的时候用run也不错,为什么要用run off呢?比如下面这个例子. He can’t run so fast as she 这里为什么用she不用her You run I run as fast as I can You can walk,run swim,skate___plar ball games用and还是or? 用所给词的适当形式填空。 1.The dog (can) run after you. You run fast can 连词成句 Can you run fast?作肯定回答 You can't run.（同义句）