intro and conlusion for my presentation about 1970s. it is group presentation so

intro and conlusion for my presentation about 1970s. it is group presentation so we are 5 students. each one of them has a topic except me. i dont have topic i just have to say the introduction and introduce them then after they finish i end up with conclusion. i have to speak 4 mins. it doesnt matter 2mins in intro and 2 mins in conclusion i just have to speak totaly 4 mins. so its ok if i speak 3 mins in intro and 1 min in conclusion. i dont want hard words so just simple english and every thing should be active voice present tense. in the bellow there name each one with his/her topic:Daniella: sports in 1970sPirsilla: influential artists and bands of the 1970seduardo: space explorationDaniel: technologyi think you need these info to introduce them