There is a book and two pens. There 起到(假)主语的作用,be动词采用就近原则,看最近的宾语的单复数。 相关文章: 2022-12-23 2021-12-06 2021-08-22 2021-07-14 2022-12-23 2021-09-26 2022-01-10 2021-09-10