manypeoplecatchacoldinthespringtimeorfall.改成manypeoplecatchacoldinspringorfall.任务型阅读.空出应该填那个单词?

many people catch a cold in the springtime or fall.改成many people catch a cold _______in spring or fall.任务型阅读.空出应该填那个单词?

参考答案


either
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