Like ancient sailors, birds can find their way____ the sun and the stars.
A. used B. having used C. using D. use
Like ancient sailors, birds can find their way____ the sun and the stars.
A. used B. having used C. using D. use
C
【解析】
试题分析：句意：象古代的水手，鸟能利用太阳和星辰来找到他们的路。Using是伴随状语。