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高三英语二轮复习专题05：完形填空2
完形填空精讲精练(20篇下)（十一）
（A）2007上海卷
Being alone in outer space can be frightening. That is one reason why astronauts on solo (单独的) space flights were given plenty of work to keep them 45 . They were also in constant communication with people on the earth. 46 , being with people from whom you cannot get away might be even harder than being alone.
