Question

You’ll have to ________ your rate of work if you want to finish the work by the date that we agreed on．

1. A.
   increase
2. B.
   add up
3. C.
   add to
4. D.
   speed up

Answer 1

D
联系上下文，说话人认为，“如果想在商议的日期前完成工作，你必须加快速度”。speed up的意思是“加快速度”。