Can you ______ Steve tonight as he's ill?

Can you ______ Steve tonight as he's ill?

A.fill in

B.fill out

C.fill up

D.fill in for

答案及解析： D

句意为“史蒂夫今晚病了，你可以替代他吗？”fill in填上，把……补齐；fill out长胖；fill up充满，装满；fill in for代替。