比一比，再组词。

极____    旦____   番____    疆____

汲____    担____   翻____       僵____

级____    胆____   播____    缰____

“一朝失信，寸步难行。”据法《法治晚报》2017年3月31日报道，江西一县政府因拒不履行已生效判决，被法院纳入失信执行人名单，也就是俗称的“老赖名单”，且按照法律规定，该县政府领导今后在乘坐飞机、高铁等交通工具时，“寸步难行”，既影响了正常工作出行，又影响了政府形象。这说明（    ）

①谁对自己不负责任，谁就要承担相应后果                            ②失信于人，既是对自己不负责任，也会产生信任危机

③不负责任必然会付出相应代价，必然会受刑法严惩            ④不负责任只是道德问题，不会受法律处罚

Fill in the blanks with the proper forms of given words.

I helped my mother to buy some beef and three____ (potato) for supper today.

"Belt and Road"（一带一路) are the two wings of developing Asia in the____ (twenty-one) century.

Please keep____ (silence) in the concert hall because people are enjoying Lang Lang's piano performance.

Candy ____ (lay) out the tea, fruit and snacks on the table and waited for the visitors.

.With the development of technology, mobile phones are ____ (wide) used these days.