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根據下面所提供的對話情景，在每個空白處填入一個適當的句子，使其意思連貫、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．