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People often fall ill because of me. However, they can hardly blame me; it is largely their own fault.A tired person may get ___1__ , especially when he goes to crowded places with polluted air. A sudden change in___ 2 ___is another factor. In hot summer, people turn on the air-conditioner upon returning home. They will catch a cold easily.
People often fall ill because of me. However, they can hardly blame me; it is largely their own fault.A tired person may get ___1__ , especially when he goes to crowded places with polluted air. A sudden change in___ 2 ___is another factor. In hot summer, people turn on the air-conditioner upon returning home. They will catch a cold easily.