1, Jack was allowed (renew) his student visa 2, Mr buck warned his daughter (play/not) with matches Giải thích dùm mình luôn nha
Mình giải thích kĩ hơn một tí : 1, Jack was allowed (renew) his student visa be allowed to do sth : được cho phép làm điều gì => to renew 2, Mr buck warned his daughter (play/not) with matches warn sb [not] to do sth : cảnh báo ai [không] nên làm gì => not to play