Hi,<br/><br/>Can I leave out the prepositions in the following sentences without changing the meaning?<br/><br/><span style="color:#0000ff;"><b><span style="color:#0000ff;"><b>An oven is for cooking things <u>in</u>.</b></span></b></span><br/><br/><span style="color:#0000ff;"><b><span style="color:#0000ff;"><b><span style="color:#0000ff;"><b><span style="color:#0000ff;"><b>A plastic bag is for carrying your shopping <u>in</u>.</b></span></b></span></b></span></b></span><br/><br/><span style="color:#0000ff;"><b><span style="color:#0000ff;"><b><span style="color:#0000ff;"><b><span style="color:#0000ff;"><b><span style="color:#0000ff;"><b>You use it to open tins <u>with</u>.</b></span><br/></b></span></b></span></b></span></b></span>