题目内容
36、---____________when has he started boxing?
----2006, I suppose.
A. In B. Since C. Before D. After
试题答案
36、B
解析： 主句是现在完成形式，所以选Since。 Since 2006 he has started boxing
相关题目
题目内容
36、---____________when has he started boxing?
----2006, I suppose.
A. In B. Since C. Before D. After
试题答案
36、B
解析： 主句是现在完成形式，所以选Since。 Since 2006 he has started boxing