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

提问时间:2021-03-01

答案
a.to wash (hands)
b washed 是被动,故去时态
c washing 是正在进行时态
d being washed 是被动,比别人洗涤 同时
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