已知曲线$f\left(x\right)=\ln x$在点$\left(x_0,f\left(x_0\right)\right)$处的切线经过点$\left(0,-1\right)$，则$x_0$的值为(      )

请根据括号中的中文提示、英文释义或句意，写出句中所缺单词，使句子通顺。
（1）We students should do many after-school____ (活动).
（2）People in different countries speak different l____ .
（3）It's ____ (hard or not easy) for me to play basketball well because I can't run fast.
（4）This boy doesn't know the____ (重要性) of study.
（5）L____ , he wasn't badly hurt yesterday.

下列划线字注音正确的一项是（  ）。

读课文《称赞》我会填。

①在小獾有点 ____的时候,小刺猬的称赞, 让小獾____  。

②在小刺猬采果子回来感到____的时候，是小獾的称赞，让小刺猬____；