将下列句子改为主动语态。
1.Strange fishes are often found in the depths of the sea.
2.A study of animal and plant life in the sea is being made by many scientists.
3.This mountain has never been climbed before.
4.Many strikes were organized by the workers in that city.
5.She was heard to read aloud in the classroom.
6.Some photos have been taken by Miss Gao.
7.My sister will be met at the airport.
8.It was believed that he could do the work of many men.
9.The story was made up by the boss.
10.I was shown the palace where the king lived.
11.Many boxes of tea were broken open by these Bostonians.
12.The young man was being questioned by the police.
13.I was told that a lot of fish had been caught.
14.This beautiful building was made a hotel two years ago.
参考答案：
1.People often find strange fishes in the depths of the sea.
2.Many scientists are making a study of animal and plant life in the sea.
3.No one/Nobody has ever climbed this mountain before.
4.The workers in that city organized many strikes.
5.We heard her read aloud in the classroom.
6.Miss Gao has taken some photos.
7.They will meet my sister at the airport.
8.People believed that he could do the work of many men.
9.The boss made up the story.
10.They showed me the palace where the king lived.
11.These Bostonians broke open many boxes of tea.
12.The police were questioning the young man.
13.They told me that they had caught a lot of fish.
14.They made this beautiful building a hotel two years ago.
