Hi, Araveg,

Below are my siggestions:

1-        I didn�t break it. It�s a lie- said the student.

The student said it was a lie that he had broken it. 

2-       ï¿½You must not use that book. If you need it, ask me first �- said the teacher

The teacher warned me not to use that book  and  he suggested that I ask him first if I needed it.

3-       If you ever take my car again. I tell it to your daddy  Paul said

Paul warned me that if I  ever took his car, he would tell  my  daddy.

4-       I know you are having a lot of exams. I can stay in classroom   to give you a hand�- The teacher said.

The teacher offered me to stay in the classroom  to give me a hand because he knew I was having a lot exams.

5-       Where did you hide your friend�s keys?- said Ann

Ann asked me where I had hidden my friend�s keys.

6-       I never told him  a secret. Please believe me. � He said

He begged that I believe him that he had never told him a secret.

7-       This motorbike  is expensive.  We could try to find a cheaper one�- Said Peter to the shop assistant

Peter explained to the shop assistant that that motorbike was very expensive and that they would probably try to find a cheaper one.

Best,

CyrillicAlphabet