If I was you, I would not treat him like this.
"Cart off" means:
Not only my parents but also I _______ regretting the change of school.
__________ hundred rupee note you found on the road belongs to me.
I prevented him _________ going.
One of the boys ________ been given a book.
The Moon _______ around the Earth
This magazine _________ twice weekly.
Mother ________ to talk to you.
The student, as well as his teacher ________ going on the excursion.