At last, they reached there was no grass and trees.
A. to the place where
B. where
C. the place which
D. in which
网友回答
A. to the place where
(答案→)B. where
C. the place which
D. in which
解析：考查状语从句。本题考查的是地点状语从句where there was no grass and trees.修饰动词rech. A项多了介词to，因为reach是及物动词；C项少了介词in，因为定语从句很完整，需要使用in which. D项缺少先行词。句意：最后，他们到了没有草和树的地方。故B正确。