Question

Mother's Day faIls on the second Sunday in May.”

为什么一定要加”falls”如下的例句对吗？想要表达的是，“美国每年五月的第二个星期天是母亲节”
1.Mother’day is sunday on the sceond of May in America.

Answer 1

Mother's Day faIls on the second Sunday in May.

Mother's Day is on the second Sunday in May.

母亲节在五月的第二个星期天。