2023年特岗教师招聘考试《小学英语》完形填空题强化练习（一）
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(一)Directions： There are 20 blanks in the following text.For each blank there are four choices marked A，B，C and D.Choose the ONE that best fills the blank.
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__1__.They were also in constant communication with people on the earth__2__，being with people from whom you cannot get away might be even harder than being alo ...