题目内容
His lecture about new business relations was very valuable and __________________ everything we learned last time.
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It is important that we open an effective ________________ of communication with each other.
On further ________________, it emerged that Wilson had not been involved in the economic strike.
The teacher told Mary that they will _____________ her recent illness _______________________ when marking her exams.
The two parties of collaboration have already _________________________________ with each other about the plan.
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