3 . 阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
Several months ago, 1 was unusual to see a man in the UK using the sinks(水池) in a public toilet. Thirty-two percent of 2,000 men 2 (question) said that they did not wash their hands after 3 (use) the toilet. However, the spread of COVID-19 has made more and more men wash their hands 4 (frequently) than before.
Governments around 5 world have stressed (强调) the 6 (important) of hand-washing. Health experts say regular hand-washing is the best way 7 (prevent) the spread of COVID-19. People should wash their hands for 8 least 20 seconds each time. So many 9 (man) in the UK started to believe regular hand-washing could be 10 (help) in protecting them from disease.