【题目】During his stay in Xi'an, Jerry tried almost all the local foods his friends ________,
A.would recommend
B.had recommended
C.have recommended
D.were recommending

【答案】B
【解析】句意：在他呆在西安期间，Jerry几乎尝遍了所有的朋友推荐的当地食品。题干中的tried动作在过去发生，朋友“推荐”动作应该发生在tried动作之前，表示“过去的过去”用过去完成时。故此处选B。