Giúp em với ạ!!!!!!!!!!!!!!!!!! Viết lại câu bị động không ngôi theo cách 2 : 1. They expect more than 100,000 people will attend the festivals at the Perfume Pagoda this year. 2. People have reported that Thien Duong is the longest cave in Viet Nam. 3. People believe the Perfume Pagoda was built during the reign of Le Thanh Tong in the 15th century. 4. People say Ha Long Bay is one of the most extraordinary natural wonders you will ever see. 5. People hope many defensive measures will be taken to protect and preserve our man-made wonders.