21. Gillian: __________ Judy: I used to live there before I moved here.
(A) Where were you used to living?
(B) Have you ever lived in Taichung?
(C) Aren’t you used to living in Taichung?
(D) When will you live in Taichung?

答案：登入後查看
統計： A(1), B(18), C(2), D(4), E(0) #1406399