With a lot of difficult problems ______, the newly-elected president is having a hard time

A.settled

B.settling

C.to be settled

D.to settle

答案及解析： D

解析：

考查with的复合结构。根据句意，可知新任总统现在日子不好过，说明有许多困难尚未解决。故用不定式表将来。此处应用主动代替被动。