9.It was acknowledged that underfunding contributed to the problem
10.It is believed that he has special knowledge which may useful to the police
13.It was alleged that two prisoners had escaped from the maximum - security prison
14.It was believed that he was working in New York
15.It is reported that the building was badly damaged by the fire
*Cấu trúc : Câu bị động không chủ ngữ : It + is / was + said / believed + that + clause....
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