On what country is this selection based

单项选择题__________ is a comedy of manners written by Oscar Wilde.

单项选择题Which two universities are the oldest ones in Britain

单项选择题Both The Grapes of Wrath and Of Mice and Men were written by __________ .

单项选择题Christopher Columbus discovered the North American continent in __________ .

单项选择题The defeat of __________ Armada in the sixteenth century marked the beginning of British naval tradition.