题目内容：

we all agree ...the plan
...里填什么 是填介词的

优质解答

答案：we all agree on/about the plan 我们都同意（通过）这个计划..
be agreed（on /about sth）意为“达成协议；意见一致”.
agree后面还可以接宾语从句,即be agreed that ...如：It was agreed that another meeting was necessary.大家都认为有必要再开一次会.
agree sth意为“在某事物上取得一致意见；商定”.如：Can we agree a price?我们能不能商定一个价格?