题海让大学四年没有难题
白天模式登陆

题目详情

单选题 You ________ all those calculations! We have a computer to do that sort of thing

A. needn't have done

B. must not have done

C. shouldn't have done

D. can not have clone

学科:默认课程

时间:2026-01-11 13:51:42

Copyright © 2022 津ICP备2021001502号