题目内容
（请给出正确答案）
[主观题]
The boy felt frustrated when he found he had difficulty with most of the math's problems.A
The boy felt frustrated when he found he had difficulty with most of the math's problems.
A．proud of himself
B．discouraged
C．scared
D．encouraged
如搜索结果不匹配，请 联系老师 获取答案
