Ребят,прошу очень нужна помощь ...

Combine the sentences using the Complex Object. 
Example: 
I did not see him. He entered the house. – I did not see him enter the house.

1)They did not notice us. We passed by.
2)He heard her. She was playing the piano.
3)He saw her. She burst into tears.
4)I felt her hand. It was shaking.
5)He hasn’t heard us. We called his name.
6)They haven’t seen the accident. It occurred at the corner.
7)I heard them. They were arguing.
8)She heard the footsteps. They were dying away.
9)She felt something. It was crawling around her neck.
10)We many times heard him. He told this story.
11)She noticed the expression of his face. It changed suddenly.
12)I heard somebody. He mentioned my name
13)I felt something hard. It hurt my leg. 

1) They did not notice us pass by.2) He heard her playing the piano.3) He saw her burst into tears.4) I felt her hand shaking.5) He hasn’t heard us call his name.6) They haven’t seen the accidentoccur at the corner.7) I heard them arguing.8) She heard the footsteps dying away.9) She felt something crawling around her neck.10) We many times heard him tell this story.11) She noticed the expression of his face change suddenly.12) I heard somebody  mention my name13) I felt something hard hurt my leg.