根据下面所提供的对话情景，在每个空白处填入一个适当的句子，使其意思连贯、完整。

Jim and Bob are good friends．They are going home after school．

J：Jim           B：Bob

J：Hi，Bob．Let's go home．

B：OK．

J：Summer holiday is coming．1．                                              

B：I'm going to Beijing with my parents．

J：Why! You went there with your father last winter holiday．

B：2．                                            

J：Really? How exciting! I wish I could go to see the Olympic Games，too．

B：Yeah．I feel I'm very lucky．

J：By the way，3．                                              

B：By train．

J：4．                                      

B：About two weeks．

J：5．                                      

B：Thank you．