________ you are supposed to do ________ you don’t like a thing is changing it．Don’t complain．

A．That；what                                               B．When；that

C．What；since                                              D．What；when

_____ you are supposed to do _____ you don’t like a thing is changing it．Don’t complain．

       A．That; what             B．When; that             C．What; since            D．What; when

_____ you are supposed to do _____ you don’t like a thing is changing it．Don’t complain．

1. A.
   That; what
2. B.
   When; that
3. C.
   What; since
4. D.
   What; when

_____ you are supposed to do _____ you don’t like a thing is changing it．Don’t complain．

      A．That; what           B．When; that           C．What; since          D．What; when

____ you are supposed to do _____ you don’t like a thing is changing it．Don’t complain．

A．That; what           B．When; that           C．What; since          D．What; when