一、语法填空(根据课文内容、依据语法规则完成下面短文）
Great Britain consists 1________ four countries: England, Wales, Scotland and Northern Ireland. In 2
________ 13th century, Wales 3________ (link) to England. In the 17th century, they were joined to Scotland. They were united 4________ peace instead of by war. However, just as they were going to get Ireland 5________ (connect) to form the United Kingdom , the southern part of Ireland broke away, so only Northern Ireland joined with them.
