题目:I would like to know how long ________ English by the time you came here.
A. had you been studying
B. you studied
C. you have studied
D. you had been studying
答案:评论后可见此内容
推荐使用我们的公众号搜索题目,题目更全,检索更方便。支持语音、图片、文字等多种搜索方式。