In order to go to the palace ball, the pretty girl ____ herself ____ carefully.

theirs  

(2011·浙江卷)I’ve been writing this report________for the last two weeks，but it has to be handed in tomorrow.

 There is said to be no medicine for a cure _____ lung cancer.

 I’m afraid I’m not ________ to help with the talent show, for I am fully occupied with my own project.