1.They have been here since 2000.___ ___

1.They have been here since 2000.___ ___
1.They have been here since 2000.___ ___ have they been here?2.The old man ___ last year.He ___for a year (die )(动词填空) 3.Miss Gao left an hour ago.(同义句) Miss Gao ___ ___ ___ ___ an hour ago.