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 ______.

单项选择题The national anthem of Australia is now the tune of ______, but on regal and vice-regal occasions God Save the Queen must be played.

单项选择题The passage mainly talks about ______.

单项选择题Which of the following is the suggestion that the author gives to the parents