1. The room is so tidy that it took us one hour to clean it.

⇒⇒ It is such a tidy room that it took us one hour to clean it.

2. The man is so fool that no one took any notice of him.

⇒⇒ He is such a fool man that no one took any notice of him.

3. The film is so long that they can’t broadcast it on one night.

⇒⇒ It is such a long film that they can’t broadcast it on one night.

4. The books are so interesting that we have read them many times.

⇒⇒ They are such interesting books that we have read them many times.