The reason _____he failed the exam was that he spent more time playing and less time learning [ ]

依次填入下面一段文字横线处的语句，衔接最恰当的一组是(　　)中国古代有“三不朽”思想，　　　　　　。　　　 　　　。　　　　 　 　。　　　　　　。　　　　　　，　　　　　　。 ①立言便是学问文章要有益于世，引导文化社会的发展②而作家搞创作并非仅仅自娱自乐那么简单③如果这个群体都宣称对读者没有责任了，恐怕会令人心生忧虑④而作家群体，一直都是立言的重要人选⑤“立言”是其中之一⑥终有一天，你们会重新看明白，教化也是文学的一个基本功能

ists say human activity contributes to climatechange, but they do not agree on the rate_______ climate change may bedeveloping

－ Mum, I’ve been studying all the morning. _____ I play computer games for a while?－No, I’m afraid not.

To all the famousartists’ surprisetheunknown woman’s two ______paintings are also on show in the art exhibition