Ребята помогите пожалуйста!!!
Поставьте правильный предлог
1. You must keep....your anger
2. I asked the children to stop shouting but they kept....making noise
3.She did her best to keep her sorrow....
4. Mary was finding it difficult to keep....her skhoolwotk

1. You must keep down your anger

2. I asked the children to stop shouting but they kept on making noise  

3. She did her best to keep her sorrow back.

4. Mary was finding it difficult to keep up with her schoolwork