根据对话内容，从下面的方框中选出填入空白处的最佳选项，使对话完整。 Shopkeeper: 1______ Tim: Hello, I'm looking for a pair of football boots for my father. Shopkeeper: Which color do you like? Tim: I like the red ones. 2______ Shopkeeper: They're 150 yuan Tim: Oh! 3______ How about the blue ones? Shopkeeper: 140 yuan. Tim: Also too expensive, 4______ Shopkeeper: Yes, The while boots cost only 100yuan.And they're good. Tim: Let me see 5______ A. Are there any cheaper ones? B. How much do they cost? C. They're too expensive. D. I will take the white ones. E. How much is it? F. Hello, can I help you?