a. X has a different function than Y.<br/><br/>b. X has a different function than Y has.<br/><br/>c. X has a different function from Y.<br/><br/>Which do you accept?<br/><br/>Which do you prefer?<br/><br/>a. The position at X looks like a very different role from that at Y.<br/><br/>b. The position at X looks like a very different role from Y.<br/><br/>c. The position at X looks like a very different role from Y's.<br/><br/>d. The position at X looks like a very different role from that of Y.<br/><br/>Which do you accept?<br/><br/>Which do you prefer?<br/><br/>Thanks