Research out at Livepool University supports this idea and suggests that if we don’t use the sense of direction, we’ll lose it.
A. to carry
B. carrying
C. being carried
D. having carried
网友回答
A. to carry
B. carrying
(答案→)C. being carried
D. having carried
解析：考查非谓语动词用法。Carrying out的被动式为being carried out，表示正在被进行的，修饰名词research研究。表示“正在进行的研究”，故选C。