Linda：Hello! This is Linda speaking.
Chris：Hello， Linda， this is Chris. _______66________ this Friday evening？
Linda：Yes， why？
Chris：There‘s a good concert， and I’ve got two tickets. I wonder ________67_______. Linda：That‘s great! _________68_________？
Chris：7 o‘clock. But how about _________69__________ at 6：45？
Linda：OK. I think I can make it.
Chris：After the concert， ________70_________， shall we？
Linda：Wonderful! Why don‘t we go to a Chinese restaurant？
Chris：Why not？ OK， see you Friday.
Linda：See you then. Bye!
66.________
68.______
69.___________
70.________
67.________
请帮忙给出每个问题的正确答案和分析，谢谢！