单选题The employee you have&nbs

问题补充：

单选题Theemployeeyouhavebeenthinkinghighlyof____reliable.A.provesB.provingC.to proveD.being proved

答案：

A解析考查句子结构的分析。you have been thinking highly of是定语从句，修饰the emplyee，句中缺少谓语，故用A。