A．ThanatopsisB．Monument MountainC．To A WaterfowlD．The D……

单项选择题Beowulf was written in ______.

单项选择题Degradation can be illustrated by the following example ______.

单项选择题The seat of the U.S. government in Washington D.C. is known as the ______.

单项选择题When the Spanish Armada was defeated, the ruler of England was ______.

单项选择题Homophones are often employed to create puns for desired effects of ______.