因发包人违约解除合同，发包人应支付价款的原则不包括（）。

A．发包人暂停向承包人支付任何价款

B．按照由于不可抗力解除合同的规定向承包人支付各项价款

C．按合同约定核算发包人应支付的违约金

D．给承包人造成损失或损害的索赔金额费用

With a lot of difficult problems_____,the newly-elected manager is having a hard time.

     [ ]

A. settled                        

B. settling

C. to settle                      

D. being settled