【题目】Behind the tree ，which was very high，and so steep that nobody could climb it.
A. did a huge rock stand B. a huge rock stood
C. a huge rock did stand D. stood a huge rock
在线课程【答案】D
【解析】表示地点的介词短语Behind the tree位于句首时，句子应使用全部倒装的形式，再结合动词的was，可知用一般过去时态，因此选择D。