问题：
______, I lost heart in English learning, but my teacher often said to me, “Keep on working hard; you’ll succeed _______.”
A．At a time; in time
B．At a time; on time
C．At one time; in time
D．At one time; on time
______, I lost heart in English learning, but my teacher often said to me, “Keep on working hard; you’ll succeed _______.”
| A．At a time; in time | B．At a time; on time |
| C．At one time; in time | D．At one time; on time |
参考答案：