Ответ:

1 if you dont do your homework, you will not learn quickly

2 Sidney will be a better player if he play football every day

3 if you eat health food you will have more energy

4 if polly save her pocket money she will buy a new MP3 player

5 Sally will go to the London for a week, if she learn some English words

6 You will not get good test results, if your brother do your homework for you.