下列计算正确的是( )
A:3-π2=3﹣π
B:(x2)3=x5
C:(﹣2x2)3=﹣8x6
D:(x+1)2=x2+1
— She is hard-working. She ________ all her effort into her work before she got ill.
—________is she?
—She is my mother.