Hi,<br/><br/>Are the following sentences natural to a native ear?<br/><br/><b>1. It might have had something to do with the fact that he was not in the class yesterday.</b><br/><br/><b> </b><br/><br/><b>2. Does it have something to do with the cost cutting policies adopted earlier this year.</b><br/><br/><b> </b><br/><br/><b>3. I apologies if you have already answered this question, but why was there a decline in activity in the northern regions?</b><br/><br/>Thanks,<br/><br/>MG.