试画出下面图1中负电荷产生的电场； 画出图2中的A点的电场方向以及放在B点的负电荷所受的电场力方向

根据音标、词形变化或语境的提示，完成短文。

      “Sorry” is a word that people in Britain often say in their daily life.

      One day while I was ____(walk) on the street, a young man ran by hurriedly, brushing（轻擦）against my handbag. He continued his way, but turned  ____ /bæk / and said “sorry” to me. Even in a rush, he didn't ____ /fə'get / to say “sorry”. One day, after I bought some bananas, the shopkeeper was passing me the change, but I wasn't ready for it and a coin dropped onto the ground. “Sorry, Madam,” he said while bending to pick it up. I was  ____ (surprise) why he said “sorry” to me. Another time, I stepped on a man's foot at the entrance to a cinema. At the same time, we  ____ /bəʊθ / said “sorry”.

       Slowly, I got to know that when something unpleasant happens in daily life, the British don't care much ____ who is wrong. If someone is in trouble, a “sorry” is always ____ / 'nesəsəri /. Perhaps that is ____ /waɪ/ I seldom see people quarrel on the buses or streets in Britain.

一个一个地数，2931前面三个数是____、____、____。