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        1. —The country has already sent up an unmanned spacecraft to the moon.
          —Yes. Chang’e I       to the moon last October.
          A.has been sentB.has sent C.was sentD.sent
          C
          考查被動(dòng)語態(tài)!埃ㄔ蹅儯﹪乙呀(jīng)發(fā)射了一顆月球人造衛(wèi)星!薄笆堑。嫦娥一號(hào)是去年10月被發(fā)射的!盋hang’e I與send之間是被動(dòng)關(guān)系,故用被動(dòng)語態(tài),排除C、D;根據(jù)last October可知,用一般過去時(shí)。故選C。
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