【题目】---How did you do on the test?
---Not so well. I ______much better, but I misread the directions for Part One.
A. could do B. could have done
C. must have done D. should do
在线课程【答案】B
【解析】
试题分析：本题考查could have done sth(本应该可以做某事，实际上没做），句意：——测试考的怎么样？——并比如我所愿，我本可以做的更好，但是我误读了第一部分的试题说明。