This robot is supposed to save a lot of labor, but it remains a problem if it ______.
A、isC
暂无解析
Postage______,thenecklacewillcostyouatleast650yuan.
Theorganizationbrokenorules,but______haditactedresponsibly.
Thisrobotissupposedtosavealotoflabor,butitremainsaproblemifit______.
ManyworkerswereorganizedtoclearawayremainedoftheWorldTradeCenter.
Thereweremanymorepeoplewhogotinjuredinthebigfirethan_______.