Are the following sentences acceptable?<br/><br/>(1) I must offer my heartfelt thanks to you.<br/><br/>(2) You are obliging and generous.<br/><br/>(3) I also want to requite you with something.<br/><br/>(4) Your kindness and generosity deserve these pearls and jewels.<br/><br/><br/><a class='_ac _lb' lightbox='http://www.usingenglish.com/forum/images/misc/progress.gif '><img class='_ac _di img-fluid' style='height:inherit; background: inherit;' data-delaysrc='http://www.usingenglish.com/forum/images/misc/progress.gif' src='http://www.usingenglish.com/forum/images/misc/progress.gif' /></a>