What sentences? There are no sentences. <span />
Number one is hable, hablo, hablaste, hablamos
Repeating the word(s) over and over, writing them and listening to them.
If it's a specific sentence, you can record yourself saying it and repeat it.
As for learning Spanish in general, try doing all those things I said before AND listening to movies in Spanish with subtitles.
Good luck!
6. Sirvan el maiz.
7. Olmec
8. A large canyon
9. durazno
10. vaya a casa