Question

— Is everything ____ we need to do ____?

— Yes. You needn't worry about it.

1. A.
   which; has done
2. B.
   which; doing
3. C.
   that; has done
4. D.
   that; done

Answer 1

D
在定語從句中，當(dāng)先行詞是everything時，關(guān)系代詞用that。