When Mary was (A) a little girl, she used to living (B) with her (C) grandparents in (D) the countryside.
When Mary was (A) a little girl, she used to living (B) with her (C) grandparents in (D) the countryside.
A. was
B. living
C. her
D. in
When Mary was (A) a little girl, she used to living (B) with her (C) grandparents in (D) the countryside.
Chọn đáp án B