a nimber of paintings in the castle are believeda number of paintings in the castle are believed___in a firebeing destroyedhaving been destroyedto be destroyedto have been destroyed选d
问题描述：
a nimber of paintings in the castle are believed
a number of paintings in the castle are believed___in a fire
being destroyed
having been destroyed
to be destroyed
to have been destroyed
选d
答
C的将来时
D是过去完成时