traditional Chinese medical records, Youyou Tu rediscovered an ancient plant-based treatment for malaria that worked ________ modern therapies failed.

What has not yet been announced is _____ the English contest will be held. I guess it may be held in the hall.

Theprisonermadeseveral ______ efforts to run away from the prison, but failed every time. [ ]

If you want to correct your composition, you’d better be more careful I have crossed out paragraphs for you.

一Is this jacket一No, it’s not . I think it’s .