听下面一段材料，回答第1-3。 1.What’s the possible relationship between the two speakers？ A. Father and mother. B. Father and son. C. Mother and son. 2.What do we know from the talk？ A. They were waiting to see the White House. B. They just visited the White House. C. They just got to the White House. 3.What did the boy wish to do at the White House？ A. He wished to be a visitor. B. He wished to stay longer. C. He wished to get a reception.