20世纪最有影响的思想家伯格森对他的学生说:“如果以后碰到什么困难,记住困难这个词的解释是:我们必须超越他,努力吧!”这表明( )
______ you are, _____ mistakes you’ll make.
My best friend Jack looks happy, and he always ________ a smile ________ his face.
She is ready to help people ________.
The____________joke often makes the children .
— _____________ does your cat weigh? — About 5 kilograms.