序数词1-20的构成与读音 — 英语填空题
题目
根据句子意思，用所给基数词对应的序数词正确形式填空。(1) My birthday is on the ___ (twelve) of May. (2) School begins on the ___ (nine) of September. (3) Today is the ___ (twenty) of June. (4) The ___ (five) picture is the most beautiful one.