基督徒的生活要素是什么？
参考答案：读经、祷告、传福音、作奉献、求进步。
— My English isn't good.
— How many years ago ____ English? [ ]
A. did you began to study
B. do you begin to study
C. have you studied
D. had you studied
（）、超高的物料运送必须有专门措施
A、超宽
B、超重
C、超长
D、超大
