题目内容：
You______ all those calculations! We have a computer to do that sort of thing.
（3.0分）0.0 分
A、
needn’t have done
B、
must not have done
C、
shouldn’t have done
D、
can not have done
参考答案：
选择题：You______ all those calculations! We have a comput
- 题目分类：兰州工业学院大学英语1
- 题目类型：选择题
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You______ all those calculations! We have a computer to do that sort of thing.
（3.0分）0.0 分
A、
needn’t have done
B、
must not have done
C、
shouldn’t have done
D、
can not have done