We must ______ that the experiment is controlled as rigidly as possible.
更新时间:2024-11-02 05:36:44 A、assureA
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It'smore________tobuyaseasonticketifyoutraveleveryday.
Weregretto________thatitmaynotbepossibletodealwitheveryrequest.
Onlya(n)________fewwereinvitedtothedancingparty.
ShegotajobasanassistantstagemanagerattheCambridgeArtsFestivalTheatre,thinkingthatitmight________toacareerasaplaywright(剧作家).
Itisusefultoscience_______theearthasanobjectinspace.
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