题目内容
Ensure the wound is free from dirt before ______ the bandage.
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It was difficult to treat patients because of a ______ of medicine.
They had stopped for coffee in the children's section, ______ they suddenly heard a loud noise at the next table.
______, Rowena knew what to do, as she had completed a baby and child first aid course with American Red Cross.
When the baby girl started to cry, I knew that she could ______ again.
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