Вставь в предложения it или he
1)Is Alex happy?_Yes, .........is.
Is the fox wet?-No ,. ...isnt't.
Is Bill with his mum ? -Yes, .... is.
Is that man angry? -No,isn't.

1) he2) it3) he4) it

is Alex Happy?Yes he isis the fox wet? No it is notis Bill with his mum?Yes hi is is that man angry? no he is not