He has been doing the job for many years, but has never felt ________ it, though his workmates think it is a ________ one．

1. A.
   tired of; tired
2. B.
   tired of; tiring
3. C.
   tiring of; tired
4. D.
   tiring of; tiring

.

 He has been doing the job for many years, but has never felt ________ it, though his workmates think it is a ________ one.

A. tired of; tired      B. tired of; tiring   C. tiring of; tired    D. tiring of; tiring

He has been doing the job for many years, but has never felt ________ it, though his workmates think it is a ________ one.

A. tired of; tired                                      B. tired of; tiring

C. tiring of; tired                                   D. tiring of; tiring

He has been doing the job for many years, but has never felt ________ it, though his workmates think it is a ________ one．

A．tired of; tired   B．tired of; tiring     

C．tiring of; tired       D．tiring of; tiring

He has been doing the job for many years, but has never felt ________ it, though his workmates think it is a ________ one．