单项选择题
The largest river in Ireland is（）
A.the Liffey River B.the Dodder River C.the Shannon River D.the Lough Derg
单项选择题 Ireland is divided into two political parts:（）.
单项选择题 Ireland is called the Emerald Isle because of （）
单项选择题 In 1949（）became Canada.s tenth province.
