1. We () for the train for a long time when it finally arrived.

    had waited

    had been waiting

2. She () about the hurricane until she read it in the magazine.

    had not heard

    had not been hearing

3. I () my housework so my mother was furious with me.

    had not finished

    had not been finishing

4. Mary needed a rest because she () for several hours.

    had studied

    had been studying

5. we () the mountain before but never without boots.

    had climbed

    had been climbing

6. As I was falling down I noticed that the other parachutist ().

    had not jumped

    had not been jumping

7. Mary () for months before she finally jumped off the plane.

    had trained

    had been training

8. The water lever was very high in the lake because it () all week.

    had rained

    had been raining