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问题详情

The board deemed it’s urgent that these invitations _____first thing tomorrow morning.

A、had to be put in the mail

B、must be put in the mail

C、be put in the mail

D、should have been put in the mai

时间：2021-09-01 16:18 关键词：安徽教育在线安徽理工大学电气工程及其自动化

答案解析

C

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