题目

听下面一段独白，回答以下小题。【1】When will Answer That be on TV?A. On Mondays. B. On Thursdays. C. On Saturdays.【2】How many teenagers are there on the program every week?A. 6. B. 8. C. 48.【3】What prize will the winners get this week?A. A camera. B. A laptop. C. A TV.【4】What is the speaker doing?A. Answering teenagers’ questions.B. Advertising a new TV quiz show.C. Explaining the rules of a new game.CO2和O2是自然界中生命活动不可缺少的两种气体，它们的相同点是   A．都无毒                        B．都能灭火     C．都能供给呼吸                  D．都能支持燃烧