Everything _____ has been doneA.which we must doB.all that can be doneC.can be doneD.that can be done选哪个?为什么?
问题描述：
Everything _____ has been done
A.which we must do
B.all that can be done
C.can be done
D.that can be done
选哪个?为什么?
答
哎，忘记了啊......汗！
答
c
答
D
that引导的定语从句,everything做先行词时,关系词只用that.