根据要求完成句型转换。
1. People tell me how I can get to the station.
People tell me how ______ ______ ______ the station.
2. Mike didn't see anybody enter the building before ten.
Nobody ______ ______ ______ ______ the building before ten.
3. The bench was so long that all of us were able to sit on it.
The bench was long enough ______ ______ ______ ______ ______.
4. I think that it is important to master a foreign language.
I think ______ ______ ______ ______ a foreign language.
5. Mary spent three thousand yuan on the color TV set.
The color TV set ______ ______ three thousand yuan.
