Question

Mother’s Day is just round the corner.I want to buy a present for my Mother one that is useful

Mother’s Day is just round the corner.I want to buy a present for my
Mother one that is useful but not expensive.
A.The;/ B./;/
C.A;a D./;the

Answer 1

解析:考查冠词用法。表示节日的专有名词前一般不用冠词，但农历的节日前一般带冠词。第二空也不用冠词，此处的one指“一件礼物”，前面不能再用冠词。
答案:B

Answer 2

你给题只有一个空儿。/ one that is useful but not expensive.
one前不需要任何冠词。因为还没买具体的礼物，one只是模糊的指代，而没有特定指向。

Answer 3

答案
是B