问题补充：
—Jean, I didn’t do very well in this test.
—. I’m sure you will make great progress if you improve the way you study.
A. Not at all
B. Don’t lose heart
C. I hope so
D. Never mind
答案：
A. Not at all
(答案→)B. Don’t lose heart
C. I hope so
D. Never mind
解析：重点考查四个短语的区别。表示鼓励，故选B.
