I stayed home because I had a bad ____ and a high fever. The doctor said the ____ entered my body and made me sick. Scientists use a ____ to look at very tiny germs. Our body has millions of ____ that work together every day. Some ____ are good and help our body, but some are harmful. When germs ____ a person, they can cause disease. My nose makes a lot of ____ when I have a cold. A strong and ____ body can fight many germs. The ____ is usually not very serious, but it makes you sneeze and cough. This serious ____ spread quickly in the class last winter. In rare cases, a serious illness can ____ the muscles and stop movement.

Oxford Discover 4 UNit 11

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