8.　　　 I don’t know either Russian or French. I know ______ ______ ______ ______. If you take a bus, you will get there in about two hours.

　______ ______ ______ about two hours ______ ______ ______.

7. Mother didn’t do the work for her little son, but taught him how to do it.

Instead of _____ _____ ______ for her little son , she taught him how to do it.

6.Of all the songs, this is the most popular.

This song is more popular ______ ______ ______ ______.

5. Mary spent three thousand yuan on the color TV set.

The color TV set ______ ______ three thousand yuan.

4. I think that it is important to master a foreign language.

I think ______ ______ ______ ______ a foreign language.

3. The bench was so long that all of us were able to sit on it.

The bench was long enough ______ ______ ______ ______ ______.

2. Mike didn’t see anybody enter the building before ten.

Nobody ______ ______ ______ ______ the building before ten.

1. People tell me how I can get to the station.

People tell me how ______ ______ ______ the station.

15. When the headmaster came into the hall, all the students ______ (stand) up.

14. Mr. Le is out. But he ______ (be) back in ten minutes.