问题
“We will learn English words this year,” the teacher said to the students.
A:one thousand, three hundred and twenty-one
B:a thousand, and three hundred twenty-one
C:one thousand, three hundred twenty-one
D:a thousand, three hundred and twenty-one
B:a thousand, and three hundred twenty-one
C:one thousand, three hundred twenty-one
D:a thousand, three hundred and twenty-one
正确答案是：
