Another thing that he found very difficult was English gramma.(改为同义句)____ _____ another thing that the found very difficult?(怎么填?为什么?)

问题描述:

Another thing that he found very difficult was English gramma.(改为同义句)
____ _____ another thing that the found very difficult?
(怎么填?为什么?)

what was

(Grammar) (was) another thing that he found very difficult.
他发现另一个非常难的事就是英语语法.
变成:(英语)语法是他发现另一个很难的事.