Dear Teachers,<br/><br/>I would be grateful if you point out the differences between “in”, “on” and “of” in the following:<br/><br/><font color="#0000ff"><b>A study <font color="#ff0000">of</font> Shakespeare’s <i>Hamlet</i>.</b></font><br/><br/><font color="#0000ff"><b>A study <font color="#ff0000">in</font> Shakespeare’s <i>Hamlet</i>.</b></font><br/><br/><font color="#0000ff"><b>A study <font color="#ff0000">on</font> Shakespeare’s <i>Hamlet</i>.</b></font><br/><br/>Which one is more common to use?<br/><br/>Thanks