5. “Was his father very strict with him when he was at school?” “Yes. He had never praised him _______ he became one of the top students in his grade.”
A.after | B.unless | C.until | D.when |
相关知识点
推荐套卷
5. “Was his father very strict with him when he was at school?” “Yes. He had never praised him _______ he became one of the top students in his grade.”
A.after | B.unless | C.until | D.when |