3. John used to ____ at midnight, but now he goes to bed early.(A) study (B) studied (C) studies (D)

問題詳情

3. John used to ____ at midnight, but now he goes to bed early.
(A) study
(B) studied
(C) studies
(D) studying

答案：A
難度：簡單0.777778
統計：A(7),B(0),C(0),D(0),E(0)