若α为锐角，且sinα=$\frac{4}{5}$，则tanα为（　　）

根据短文内容，从方框中选择恰当的单词完成句子。所有单词在填入前不需要进行词形转换，每个单词只能用一次，每空只能填一词。

 At the weekend, many ____  people in the UK do some sports on Saturday morning, and maybe they____  shopping in the afternoon. On Sunday they get up____ . They usually see friends and have lunch with ____  family on that day. In the afternoon they sometimes go for a ____ . But on Sunday evening, it’s time for homework.

       青春应立志为国。范仲淹少有大志，每以天下为己任，发奋苦读；“两弹元勋”心年轻时就立志要让中国变强盛，将自己毕生的心血奉献给了赌博的国防科研事业。