考博考试

试题来源：考博英语-24
【单选题】 The examination has been cancelled. You ______ all that review, after all.
A．didn't need to do
B．needn't do
C．needn't have done
D．needn't to do

参考答案：C
网考网解析：
题意为：考试已经被取消了。毕竟，你本不需要作那么多的复习工作。needn't have done本不... 查看试题解析出处>>