根据短文括号内所给汉语意思，在空白处写出单词的正确形式。每空一词

 Last ____ (圣诞节) Day, when I was at the street ____ （角落）, a car ____ （经过） by. The car stopped in front of me. A woman looked out of the car and asked me  ____ （有礼貌地）, “Excuse me, could you tell me the right direction to the  station?” Oh, my god! She was my old classmate. She used to be a shy girl. She didn’t ____（敢于）to speak in ____ （公众）. But her English was good and she did well in the ____ （发音） and the ____ （语法）. I____ （羡慕） her very much. Finally we had a happy  ____ （谈话） and I told her the way to the station.

有一个家用电熨斗，其电路结构如图所示，在正常工作时，改变内部接线方式可以使电熨斗获得低、中、高三个不同的温度档．下图所示是它四种不同的连接方式，其中获得低档温度的是（   ）