He is reading.is是助动词还是联系动词?
He is reading.is是助动词还是联系动词?
He is reading.is在这里是助动词还是联系动词?
be 是联系动词还是助动词?
she is married.这句中is是助动词,系动词还是实义动词?
is在这句话中的词性He is a student.is在这里是实义动词还是助动词?多谢!
is+动词ing 中的is 是系动词还是助动词 应该是系动词的吧 系动词和表语构成谓语
he is singing里的is是助动词吗?
is什么时候是助动词,什么时候是系动词
He is reading books变实意动词型
he is reading book?
助动词,谓语动词助动词能做谓语动词么?比如 have,is ,was.After he had finished his
he is reading in the library.还是he is reading at the library啊