1.Your shoes are dirty.Please w_____ them.2.Sam's house is next to the school,so he usually w_____ to school.3.Brad opened the box and found n_____ in it.
问题描述：
1.Your shoes are dirty.Please w_____ them.
2.Sam's house is next to the school,so he usually w_____ to school.
3.Brad opened the box and found n_____ in it.
答