<p><a id="_heading=h.30j0zll"></a>Ayu		: Listen! The bell is ringing. I must go now</p><p>            Putri 		: Okay. Let&rsquo;s discuss the lesson again tomorrow. Goodbye Ayu.</p><p>           Ayu 		: Okay. <u>Goodbye, Putri.</u></p><p>           What does the underline sentence express?</p>
