How Doctors Learned

Gap-fill exercise

Fill in the spaces by selecting words from the line below or from the drop-down list next to each space. Press "Check" to see the answers and to learn your score.

   cleaned      instead      treated      war      wounds   
Many years ago doctors cleaned with hot oil. During a , one doctor had many soldiers to care for. One day he ran out of hot oil. So he mixed cold oil and eggs and used that . The next day he looked at the men he had . The wounds that were with hot oil were still bad. The wounds that were cleaned with cold oil and eggs were getting better.