I do your timely help yesterday, without I couldn’t have found the solution.
A. thank; which
B. appreciate; it
C. thank; it
D. appreciate; which
网友回答
A. thank; which
B. appreciate; it
C. thank; it
(答案→)D. appreciate; which
解析：考查动词和定语从句：句意：我确实感谢你的及时的帮助，没有它，我找不到解决的办法。Thank和人搭配，appreciate可以接sth做宾语，在BD里面选，因为是定语从句，without后面接which，选D。