Sound contrast

In English, there are many sounds that seem similar  in pronunciation. It is necessary to know  the difference and practice them because they   change the meaning of our ideas.

1.-  Think versus Sink

1.1  Exercises : http://www.manythings.org/mp/m17.html

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2.- Contrast between of words ending with "ture" and "tion".

 

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3.- Contrast between the "Sh" and "Ch" sounds.