Question

【题目】To keep air clean, people in that city don't ______fireworks now.
A.take off
B.let off
C.turn off
D.put off

Answer 1

【答案】B
【解析】句意：那个城市的人们为了保持空气干净，现在不放鞭炮。take off起飞；let off使爆炸； turn off关上；put off推迟，延误；结合句意，此处表示放鞭炮，故用let off，故选B。