The last Beidou GEO﹣3 ____ into space successfully on June 23，2020．
As Chinese， we feel proud of it．（ ）
A．sendsB．sentC．is sentD．was sent
The last Beidou GEO﹣3 ____ into space successfully on June 23，2020．
As Chinese， we feel proud of it．（ ）
A．sendsB．sentC．is sentD．was sent
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