put forward his suggestion at the meeting that everyHe put forward his suggestion at the meeting that every means ________to save the crops before the storm came.A.be tried B.was tried C.should try D.tried为什么选A而不选择B?再帮我看一下

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putforwardhissuggestionatthemeetingthateveryHeputforwardhissuggestionatthemeetingthateverymeans_____

put forward his suggestion at the meeting that everyHe put forward his suggestion at the meeting that every means ________to save the crops before the storm came.A.be tried B.was tried C.should try D.tried为什么选A而不选择B?再帮我看一下
put forward his suggestion at the meeting that every
He put forward his suggestion at the meeting that every means ________to save the crops before the storm came.
A.be tried B.was tried
C.should try D.tried
为什么选A而不选择B?
再帮我看一下这个题.....
The project,________ in 2009,has expanded the city’s cellphone network to cover
one million users.
A.accomplished C.to be accomplished
B.being accomplished D.having accomplished
为什么选A,不应该是having been accomplished吗

put forward his suggestion at the meeting that everyHe put forward his suggestion at the meeting that every means ________to save the crops before the storm came.A.be tried B.was tried C.should try D.tried为什么选A而不选择B?再帮我看一下
同学,当定语从句中的先行词如果是suggestion (建议)时,后面的定语从句用虚拟语气,定语从句中用should+动词原形,其中的should可以省略.本句就是把should省略了.

因为这里出现了 suggestion 一般要用虚拟语气 A 其实是省略了should 完整应该是 should be tried 一般情况考点都在这 should 存在 但是一般省略 以后牢记这一点啊

He made the suggestion that the political prisoners (should) be set free.
他提议释放政治犯。

这是虚拟语气的用法,省略了 should

这里可能省略了should或者must
has expanded 现在完成时
表示过去的事情对现在的影响
所以用一般过去时