用关系代词that，who，whom，whose，which填空

1．She looked at Jeff, ________ was waving his arms.

2．There she saw a wall of water ________ was quickly advancing towards her.

3．Flora, ________ beautiful hair and dress were all cold and. wet, started crying.

4．Before she could move, she heard a loud noise, ________ grew to a terrible roar.

5．Tree after tree went down; cut down by the water, ________ must have been three metres deep.

6．This is the professor ________ taught me chemistry in 1980.

7．The hospital ________ was built five years ago has been modernized.

8．This is the boy ________ father died three years ago.

9．The film ________ we saw the day before yesterday is very interesting.

10．Do you know the student ________ was praised at the meeting?