1.完成句子：The magnificent museum (is said to have benn built) about a hundred years ago.括号内为标准答案,我想知道为什么要用完成时,为什么不能直接写（is said to be built).
2.翻译句子：or sending a purchase order to a supplier via fax.这虽然是半截话,但是不影响翻译.