英语语法填空，有答案，求详细解析，详细的重赏

Question

I couldn’t say I didn’t like something，（ whenever?） it might be, until after I tried it.
I believed I would work for a few years, get married, stay home and raise a family,so didn’t think the job I took mattered that much. I couldn’t__(have been)___more mistaken.
I mastered he skills of that _begining___level position.
Several days later, I received Jack’s email,__saying___(say) that he really appreciated the book I_had sent_(send)。
He said he was enthusiastic about Chinese, and asked me to find him somebooks_intending___(intend)for Chinese beginners.
__Sometimes__ a smile is so powerfulthat it gives people__suffering___(suffer) from disasters great courage.

Answer 1

saying___(say) 这一句，伴随状语，那封email讲的是要用saying
the book I_had sent_(send)这本书是之前送的，是在道歉前送的，道歉已经是以前的事了，所以送书是以前的以前的事。
find him somebooks_intending___(intend)for Chinese beginners.语法find sth. adj.
gives people__suffering___(suffer) from disasters great courage. suffering from =people who suffered from
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