Medcial erperts say the most effective way to prevent the spread of disease is for people ______their hands with soap and watera to wash b washed c washing d being washed要知道理由

Medcial erperts say the most effective way to prevent the spread of disease is for people ______their hands with soap and watera to wash b washed c washing d being washed要知道理由 英语翻译my major is Biomedical Engineering...reaserch and development medcial devices....处用从句连接 say Say say Say say say say say say you say me say you say say you say Say sorrySay goodbyes Say 求有一首韩国音乐,男声,歌词好像是SAY SAY SAY SAY SAY SAY SAY GOODNIGHT~ 英文歌 say say say you love me never say Never say