题目：
— How did you do on the driving test?
— Not so well. I _____ much better but I was too nervous. [ ]
A. would do
B. could have done
C. must have done
D. should do
答案：
答案：B
— How did you do on the driving test?
— Not so well. I _____ much better but I was too nervous. [ ]
A. would do
B. could have done
C. must have done
D. should do
答案：B
