-What is month of the year ? ---It’s December . A. the twelveB. twelveC. twelfthD. the

问题补充：

---What is month of the year ? ---It’s December .

A. the twelve

B. twelve

C. twelfth

D. the twelfth

答案：

A. the twelve

B. twelve

C. twelfth

(答案→)D. the twelfth

解析：此题考查序数词的拼写。