a dog is sitting on the mat中文和a dog is sits on te mat的区别_英语解答

a dog is sitting on the mat中文和a dog is sits on t
e mat的区别

人气：221 ℃　时间：2020-02-05 13:00:23

解答

sit是动词,前面不能直接加is,所以第二种说法是错误的.