<font color="#006400">Ms. Eto usually flies <u>by</u> economy class, but this time, the company has given her a business class ticket to L.A.</font><br/><br/>Should I correct <font color="#006400">'by'</font> to <font color="#006400">'with'</font> or something else? I am not sure and please help.<br/><br/>LCChang