Past perfect simple and continuous

1.    Recently I (feel) really tired.

2.    The boy ( broke) his leg before his mother came.   

3.    I could smell cigarettes. Somebody (smoke).

4.    Suddenly, my car broke down. I was not surprised. It (not/run) well for a long time.

5.  I (eat/already) when you called me.   

6.    Kathy put on weight because she (not/do) exercise for months.

7.    My mother (already/cook) the dinner when I arrived.

8.    I (run) for an hour when it started raining.

9.    If it (not/rain) , we would have played football.

10.  Mary (not/finish) her homework yet.