poison，dramatic，desperate，submit，sink

（1）Thanks to the efforts of the government，China has seen a/an

dramatic

dramatic

decrease in rural poverty.
（2）All application forms should

be submitted

be submitted

to the teacher in charge before May 1^st，2023.
（3）Electronic waste also contains

poisonous

poisonous

metals which are harmful to people's health.
（4）Unfortunately，the Titanic

sank

sank

after hitting a huge iceberg in 1912.
（5）"Oh，there's no use in talking to him，"said Alice

desperately

desperately

，"he's such a fool!"