问题详情

A．It"s a time when people exchange gifts with friends, family, and teachers.
B．It"s a holiday when friends give gifts during a splendid dinner.
C．It"s a day when people think of others without waiting for a gift in return.
D．It"s a time that you can receive lots of gifts.请帮忙给出正确答案和分析，谢谢！