Are these correct ? <br/><ol><li><i><font color="#800080"><i><font color="#000080">I have many friends, <u>most of whom</u> are blond.</font></i></font></i><font color="#800080"></font></li><li><i><font color="#800080"><i><font color="#000080">I have many friends, <u>who are mostly </u>blond.</font></i></font></i></li><li><i><font color="#800080"><i><font color="#000080">I have many friends, <u>most of them</u> are blond.</font></i></font></i><font color="#800080"></font></li><li><i><font color="#800080"><i><font color="#000080">I have many friends, <u>most </u>are blond.</font></i></font></i></li></ol>And can I remove the 'comma' in sentence 1?<br/><br/>Thks~