listEning 3 "linguistiCsClAss"
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why DoEs thE proFEssor DisCuss thE rulE to AvoiD EnDing A sEntEnCE with A prEposition
A、it is AgooD ExAmplE oF thE wAy thAt DEsCriptivE grAmmAr is usED、
B、it shows thE stuDEnts how to usE FormAl grAmmAr in thEir spEECh.
C、it is A wAy to introDuCE A humorous story into thE lECturE.
D、it DEmonstrAtEs thE proBlEm in using lAtin rulEs ForEnglish.