题目

情景交际 根据对话内容及上下文，在题号后的空白处填入适当的词，使对话意思完整。每空只填一词。 A: Bob！Do you like playing computer games? B: Yes, of (1)              . Why? A: Then what (2)               going to the Internet bar with me after school? B: (3)                . I'm afraid I can't go with you today. (4)             about Sunday afternoon? A: Sunday afternoon. OK. Let's go together then. B: All (5)                .已知函数f(x)＝x2＋ax＋b(a，b∈R)的值域为[0，＋∞)，若关于x的不等式f(x)＜c 的解集为(m，m＋6)，则实数c的值为________．