Dear Teacher<br/><br/>" Now let’s review both of us key words. "<br/><br/><br/><br/>Can I use <b>both key words of us</b> instead of both of us key words ?<br/><br/><br/><br/><br/><br/>or Can I use <b>both of our key words </b>instead of both of us key words ?<br/><br/><br/><br/><br/>Thanks a lot.