Everyone should keep on getting himself educated so as to be ________ modern technology．
A.good atB.successful inC.up to date withD.interested in在线课程C
此题考查的是词组辨析。be good at对……擅长；be successful in在……方面成功；be up to date跟上时代，不落后于；be interested in对……感兴趣。根据句子意思“我们每个人都应该不断接受教育，以使自己能跟上时代的步伐，故应该选择答案C项。