Warbler 1 Two-barred Greenish
2: Yellow-streaked
3: Perhaps Hume's (mandelli) but too far away to be sure
4: Chinese Leaf
5: not sure, perhaps Dusky
6: Buff-barred
7: Buff-barred
8: Large-billed Leaf
All of these warblers are easily identified if they are singing! Phylloscopus (and Seicercus) are classic examples of species where ID by a combination of plumage features and song is almost always diagnostic.
Best regards
Mike Leven