The paper studies some        cases in which something somehow wrong leads to the miscommunication,so that English teachers may improve their teaching.

The speaker is giving rather an________ speech, as I can judge from the________ look of all the listeners. 

—Do you regret spending 500 dollars on the overcoat?—No,I would have paid _________ if the shop owner had insisted.

—Why are you laughing secretly at me?—You look         in that odd hat.

21st century school edition is ____a newspaper .It helps us to improve our English a lot .