I found the German language hard

I found the German language hard 六道非谓语选择题I found the German language hard ___.A to learn B to the passage contains sentences that I found --------hard to I found it was hard to finish the hard work on time改为同意句 英语翻译Personally,I found it hard to believe I'm the one with t i found it important to stard hard I found it hard to living. I found ()too hard to learn English? I found it hard to understood i found ____ hard to finish the work in such a short time? I found it hard to belive that he was working for the enemy But ____ I found it was hard to keep the promise.A.just then