读“世界大洲和大陆分布图”，完成下列要求（每格1分共10分）                                                                                                                                                                                                                                                                                                                                                                                                    

七大洲为： A是        B是        C是          D是          
E是         F是         G是          
四大洋为：①              ②                  ③