用不定式的正确形式改写句子.
问题描述：
用不定式的正确形式改写句子.
3.People say that will pull down the building in a few days.
The building is said _________ in a few days.
4.The thief pretended that he had been mistaken by the policeman.
The thief pretended _________ by the policeman.
答
3.to pulled down
4.to have been mistaken