.It's a pity,many of the children in the world are still suffering from hunger
->I wish no child in the world are still suffered from hunger
2.People in the world have conflicts and don't live in peace
->I wish that people in the world didn't have conflict and lived in peace
3.She never smiles at me
-> I wish that she smiled at me
4.Why don't you give up smoking?
-> I wish that you gave up smoking
5.I would love to travel abroad
->If only that I traveled abroad
6.She is always leaving her books at home
->I wish that she didn't leave her books at home
7.His mother is sorry he can never get good marks
>His mother wishes that he could get good marks