When did the English invade Ire-land? When did they firmly control the island? What was the Act of Union?
【正确答案】：(1)In 1170—1171, English armies invaded Ireland.
(2)By the end of the 17th century, England firmly controlled the island.
(3)The Act of Union joined Great Britain and Ireland into the United Kingdom.
【题目解析】：
参见教材P345。
