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It                   Yang Liwei about 21 hours                  the earth 14 times in the spaceship．

A．took；to circle                          B．spent；to circle

C．took；circling                         D．spent；circling

It       Yang Liwei about 21 hours       the earth 14 times in his spaceship.

It ________ Yang Liwei about 21 hours ________ the earth 14 times in his spaceship.

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