Question

【题目】On her ________ (twenty) birthday, Annie received a Huawei Mate 30 from her mother as a present.

Answer 1

【答案】twentieth

【解析】

句意：Annie 20岁生日那天，母亲送给她一部华为mate30作为礼物。

on one’s+序数词+ birthday，表示在某人多少岁生日时，这里因为有物主代词修饰，所以序数词前的定冠词the要省略，on her twentieth birthday在她20岁生日那天，故答案为twentieth。