都要用完成时
1.He has just had supper.
2.Have you ever sung this English song?
3.They haven't done their homework yet.
4.We have never seen the film.
5.He has died.
都要用完成时
1.He has just had supper.
2.Have you ever sung this English song?
3.They haven't done their homework yet.
4.We have never seen the film.
5.He has died.