打开工作簿文件EX11．XLS，对工作表内的数据清单的内容按主要关键字为“主材费”的递减次序和次要关键字为“辅材费”的递增次序进行排序，排序的工作表还保存在EX11． XLS工作簿文件中，工作表名不变。

The poems said________by Sean Cannery will be published next year.

A．having written

B．written

C．to have been written

D．having been written