A-A+
Jim's score on the test is the highest; he____
问题详情
Jim"s score on the test is the highest; he______hard.
A．should have studied
B．could have studied
C．must have studied
D．could study请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：C
解析：should have done和could have done的意思均为“本该做……”，言下之意是并没有做后面的动作。must have done的意思为“一定做了……”，could do的意思是“能做……”。正确答案为C。
