This robot is supposed to save a lot of labor, but it remains a problem if it ______.
C
暂无解析
Modernscienceandtechnologyhas_____communicationbetweenpeoplefarapart.
Thegreatuseofschooleducationisnotsomuchtoteachyouthings_____toteachyoutheartoflearning.
You____himsoclosely;youshouldhavekeptyourdistance.