The building is the second         in our town。

A.   high    B.  highest    C.  higher        D.  the most highest

The building is about ________．

1. A.
   100-metre-high
2. B.
   100 metres high
3. C.
   100-metres-high
4. D.
   100 metre high

The building is about 320 metres________; it is the________ building in our city.

1. A.
   high,high
2. B.
   higher,higher
3. C.
   high,highest
4. D.
   higher,highest