Without the contributions of Qian Xuesen, the father of Chinese missile, the achievements in space technology unthinkable in China.
A.would be | B.would have been |
C.might be | D.should have been |
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Without the contributions of Qian Xuesen, the father of Chinese missile, the achievements in space technology unthinkable in China.
A.would be | B.would have been |
C.might be | D.should have been |