—Is everything ____ we need to do ____?—Yes.&n

— Is everything ____ we need to do ____?— Yes. You needn't worry about it.A.which; has doneB.which; doingC.that; has doneD.that; done

D解析在定语从句中，当先行词是everything时，关系代词用that。

我好好复习下