The second Sunday of May is Mother’s Day it’s special day for children to show their lo

问题补充：

The second Sunday of May is Mother’s Day, it’s special day for children to show their love to their dear mums.

A. the /the

B. 不填/a

C. 不填/the

D. the/a

答案：

A. the /the

(答案→)B. 不填/a

C. 不填/the

D. the/a

解析：Mother’s Day 为专有名词，前不用冠词后文可以用，故选B