A：Have you ever ___1___ to the Great wall?

B：No, I haven't. I have been ___2___ China many times, but I've never been ___3___. I'm looking ___4___ to ___5___ it.

A：I'm ___6___ you will be able to.

One day, I happened to meet an Englishman in the street and soon we began to talk. As I was talking a  1   how I was studying English, the foreigner seemed to be very s  2   , gently shaking his head and saying “You don’t say!” I was puzzled, and I thought “P  3   this is not the right thing to talk about. So I said to him, “Well, shall we talk about the Great Wall? Have you ever been there?”

“Certainly! Everyone back home will laugh at me if I leave here without s  4   it. The Great Wall is wonderful.” “Yes, it is one of the wonders in the w  5   . And people of many countries have come to visit it.” As I went on telling him m  6   about it, he stopped me again “You don’t say!”

I couldn’t help asking, “Why do you ask me not to talk about it?”

“Well, I didn’t ask you to do so,” he answered, gently surprised.

“Didn’t you say ‘You don’t say!’?” I asked again.

Hearing this, the foreigner laughed l  7   . He began to e  8   , “ ‘You don’t say!’ means ‘Really!’. Perhaps you know l  9   about English idioms（惯用语）.”

Wow! How f  10   I was! Since then I have been careful with English idioms.