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Some film stars _______ difficult to work with.

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It ______ that learning English is easy.

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_______ that the temple was built on the current site of Thien Tru in the 15^th century.

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It is hoped that any defensive measures _______ to protect and preserve our man-made wonders. 

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_______ the best time to visit the complex of Hue Monuments is in April.

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It is ________ that many people are homeless after the floods.

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________ that many of our man-made wonders have been damaged.

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_______ that two people had been injured in the accident.