The members of the club wouldn't run a _____ in entrusting（委托） the organization to an unreliable person.

----Do you have anyone particular in _____ for the job?----In my opinion, Tom is the right person.

The teacher kept his _______ and took his students to the cinema，where they had _______.

Due to the widespread________ of this medical technology, more diseases can be discovered and treated at an early stage.

Gerneally speaking, it is difficult to breathe at a high       of Tibet (西藏).