the back garden of our house contains a leaving --very pleasant to sit on in summer.which iswhich it isit iswhere it is这四个选项应该选哪一个?为什么?能具体分析一下吗?谢谢!

问题描述:

the back garden of our house contains a leaving --very pleasant to sit on in summer.
which is
which it is
it is
where it is
这四个选项应该选哪一个?为什么?能具体分析一下吗?谢谢!