1.(典型例题宁) I Walked in our garden, Tom and Jim were trying a big sign onto one of the trees.
A. which B. when C. where D. that
[考场错解] B
[专家把脉] 以句意来看很容易把本题当作是一个时间状语从句或是等立连词when引导的从句.根据题干分析，后者是用来说明Tom and Jim要做的事情的地点，也就是说应该用定语从句来修饰和说明情况的，故填 where来，引导非限制性定语从句。
