单选题 He is very helpful. What he did for us made the job much easy
  • [A] done
  • [B] doing
  • [C] to do
  • [D] being done


【正确答案】 C
【答案解析】习惯用法：made the job much easy to do让这个工作很容易做。注意是to do而不能用to be done。