题目：
_______,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
答案：
答案：C
_______,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
答案：C
