They cannot skate,...?My sister arranges the picnic,...? Children looked at me,...? Students will be responsible for the ,...? You could do homework,...?дополните разделительным вопросом

They cannot skate, can they?My sister arranges the picnic, doesn't she?Children looked at me, didn't they?Students will be responsible for the..... ( не дописали), won't they?You could do homework, couldn't you?