Hi teachers,<br/><br/><a class='_ac _lb' lightbox='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/1762667.0_r29t9m79xr28.png '><img class='_ac _di img-fluid' style='width:584px; height:inherit; background: inherit;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/1762667.0_r29t9m79xr28.png' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/1762667.0_r29t9m79xr28.png' /></a><br/><br/>From <i>The Love That Saved My Life</i><br/><br/>"<b>I think</b> I'll have the chicken."<br/><br/>Is "I think" necessary? What is it for?