完形填空
People often fall ill because of me. 1 , they can hardly blame me; it is largely their own 2 , A tired person may get 3 , especially when he goes to crowded places with polluted air.A sudden change in 4 is another factor.In hot summer, people turn on the air-conditioner upon returning home.They will catch a cold easily.
My latest victim is an energetic student.After school, he played football hard for two hours.Though 5 , he still went to the cinema.Then he got back home and took a cold shower immediately.
I seized this golden chance to 6 him.He reacted, trying to 7 me, but I was already 8 deep in his throat.He kept sneezing(打喷嚏)and his nose was running. 9 he put on some warm clothes, it didn’t work, for there were too many of us.Besides, his sore throat kept 10 him, and he developed a cough to force me and my family out, but 11 .
The next day he couldn’t go to 12 , He had lost his appetite and was not as 13 as before.His mother made him orange juice every few hours for more vitamin C, which would help his 14 .
For two days he was 15 by his mother.As he rested more, his defense strengthened and I began to feel the 16 , I knew I had to 17 him before long.But I am not the one who gives up easily, and I made every effort to fight back. 18 , it was my turn to feel 19 now, for his defense system was starting an all-out attack against me.I became 20 and finally my time was over.
Do you know what I am?
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