The waters of the lake were so     that it looked like glass . 

Microblog（微博）        with so many people is sure to influence our society..

She prefers the sofa made of real leather although it costs more than that made of ______ leather. 

---It is reported that several _________ teams will compete in the 4th World College Students Dragonboat Race ,which will be held in Taiyuan in June.---I can’t wait to see.

—Which one of these two dictionaries do you advise me to buy, Oxford or Longman?—Well, take Oxford. I think it is the ________ of the two.