the dog is running a_____ the grasskuai

The cat is running after the dog. the dog is running a_____ the grasskuai the dog is running toits m____ 改为陈述句 Is the dog running? 选择：The dog ____ after the mouse A、is to run B、is running／／／／／／／／／／／／／／／／／ the dog is running after a white cat,和the dog is running after a white of cat语法都对吗 有关定语从句是i saw a dog which is red running in the park.还是i saw a dog who is red running in the park. Look!An old man is running after a dog.The s______ is really ______. The dog(is running after a cat)in the garden.对括号部分提问 after,the,running,boy,is,the,dog连词成句 介词填空：The dog is running __ the grass after,the,running,boy,is,the,dog.连词成句. His dog is ____a cat.A.running into B.running before C.running after 连词成句 the running is ofter the dog mous连词成句 the running is ofter the dog mouse? which running dog is yours 和is the dog which is running yours ?哪个语法正确?why ? what is dog doing 还是what is a dog doing,那个对 还有is dog running across the street,还是is a dog,这两个句子到底用不用冠词a 啥时候用冠词各位大仙求解 12．There is a dog ________ in the yard（院子）now． A．run B．running C．runs D．is running is running a dog there her after 连词成句