—Come on, please give me some ideas about the project.—Sorry. With so much work __________ my mind, I almost break down.

Tell the children ______ there not to make so much noise．

—What’s the matter with John? —He’s had his leg ______ trying to save a boy from a fire.

___________ that he was in great danger, Eric walked deeper into the forest．

_______ confidence and patience, they failed to settle the difficult problem.