56（）

The very best of the author is that he _____ .

• A、met a good teacher

• B、he graduated from Stanford

• C、made friends with his teachers

• D、met some good teachers in his life

Why does the writer give us the advice?

• A、We’re not skillful enough to make clear sentences.

• B、Misunderstanding is damaging our normal lives.

• C、Misunderstanding occurs now and then.

• D、It’s impolite to say NO to others.