As nobody here knows what is wrong with the machine, we must send for an engineer to _______ the problem.

She has always _____ her father. In her eyes he is perfect. 

It seems impossible for the two neighboring countries to arrive at a ________ on the conflict in the near future.

 After that, he knew he could ________ any emergency by doing what he could to the best of his ability.

Three years ago，a society was set up to________the endangered animal and plant life from dying out in this area.