There are months in a year. month is December.A. twelve; TwelfthB. twelve; TwelveC. twelft

问题补充：

There are months in a year. month is December.

A. twelve; Twelfth

B. twelve; Twelve

C. twelfth; The twelve

D. twelve; The twelfth

答案：

A. twelve; Twelfth

B. twelve; Twelve

C. twelfth; The twelve

(答案→)D. twelve; The twelfth

解析：根据题干，本句的意思是“一年中有十二个月，第十二月是December。”第一个空应该用基数词，而第二个空应该用序数词。所以本题选D。