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 |
相关知识点
推荐套卷
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 |