it is certainly a good boy

it certainly is she is a good boy. it certainly is(NCE135课) he is a boy and is good it is a good 看起来他是个好孩子 除It seems that he is a good boy 这句 He is a good boy,and his brother is ( )good. 改错：What good a boy he is! Bill is a good boy.(改为感叹句) Eddie is a good boy.He_____helps others. He is a good boy.改为感叹句 He is a good boy.(感）