3．It is reported that China ______ its first orbiting space station by around 2022．（　�。�
A．is to completeB．is going to complete
C．will completeD．will have completed

分析 據(jù)報道，到2022年左右中國將建成第一個軌道太空站．

解答 答案：D．
by+時間作狀語時，主句通常用完成時態(tài)．根據(jù)時間狀語by around 2022可知，時間是截止到一個將來的時間，所以設空處應該用將來完成時（will have completed），故選D．

點評 本題考查時態(tài)．時態(tài)題關鍵在于對句意的理解，要根據(jù)上下文以及時間狀語，找到符合語境的答案．

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