（       ）We must wash our hands before______.

We must wash our hands befor m_____ we must wash our hands before have dinner —Excuse me, where can l wash my hands?   &nbs 适当词填空一道Before supper we must wash our hands,and ______ it we Before [eat] meals ,we must [wash] our hands 动词的适当形式 We should wash our hands b________meals. We shold wash our hands () meals. Our classroom must ______ clean eve We should wash our hands before meals wash our hands before hands的意思  Both hands   we should wash our hands before we have