急,
问题描述：
急,
it was urgent that he speak to him为什么it was过去式中he speak用动词原形,而不用he spoken或he speaks.
答
It is urgent that sb (should) do sth.
should可以省略
此用法同 it is high time/important/necessary/natural...that sb should do...
还有楼主...
speak 的一般过去式是spoke^_^