It       Yang Liwei about 21 hours       the earth 14 times in his spaceship.
A．spent; circlingB．took; travelingC．spent; to travelD．took; to circle
D
此題重點考查重點句型結(jié)構(gòu)it takes sb some time to do sth表示某人花費多少時間做某事。
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