Is this the very material that scientists the 2012 London Olympic Games torch?
A. used to light
B. are used to lighting
C. use to light
D. are used to light
网友回答
(答案→)A. used to light
B. are used to lighting
C. use to light
D. are used to light
解析：句意为：这正是那种科学家用来点燃2012年伦敦奥运火炬的材料。used to do sth过去常常做某事儿或者是用来做某事儿；be used to doing 习惯于做某事儿；be used to do sth 被用来做某事儿。科学家用来去点燃奥运火炬的材料，故答案应为A。