单选题
[填句补文]Mother‘s Day is a special day for everyone！ We use this day to honor our mothers all over the world！ ______ It is held on the second Sunday of May in many countries， such as Australia， Canada and the United States. It is held exactly three weeks before Easter Sunday in the United Kingdom. Sundays are usually non-school and non-working days in these countries.
A.She wanted to memory her mother， Ann Jarvis.
B.When is the earliest Mother‘s Day celebration
C.Many families begin Mother‘s Day with breakfast in bed.
D.Mother‘s Day falls on different days in different the countries.
正确答案：D
答案解析：答案是D。首段前两句话点名了文章的主题是关于母亲节的。要选择正确的空格内容，首先要判定空格后面出现的it指的是什么。通读首段，不难发现，it指的是不同国家母亲节的日子。纵览各选项，只有D选项最符合上下文语境。