Iwalkediourgarden,tomandjimweretyingabigsignontooneofthetree.AwhenBwhere为什么不能选A?我把它理解成"当我路过我的花园时,汤母和JIM正在."标准答案是B

Question

I walked i our garden,_____tom and jim were tying a big sign onto one of the tree.
A when B where
为什么不能选A?我把它理解成"当我路过我的花园时,汤母和JIM正在."
标准答案是B

Answer 1

如果一定要使用when,句型应该是这样：
When tome and Jin were tying a big sign onto one of the tree,I walked in our garden.
这里where...是用来形容garden的.