用所给词的适当形式填空。(1)What’s your____ (high)?(2)The boys often go____ (swim) in that river in summer.(3)Nobody ____ (like) his new look.(4)Many young people want to be____ (sing).(5)He wears____ (glass) every day. He thinks that’s very cool.
下列关于地球的形状和大小的叙述,正确的是( )
①地球是球体②地球的平均半径是6371千米
③地球是圆形④地球的最大周长约5.1万千米