In the forest we observed some trees ____the leaves were black with disease.A.whereB.of whichC.in wh

题目简介

In the forest we observed some trees ____the leaves were black with disease.A.whereB.of whichC.in wh

题目详情

In the forest we observed some trees ____the leaves were black with disease.
A.whereB.of whichC.in whichD.whose
题型:单选题难度:偏易来源:不详

答案

B                       
of which引导定语从句 

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