make use of 后加to do 还是doing?

Question

这题：your time should have been made use of _the final exam ,but ,to my regret,it was not.
A to pass B passing C to have passed D having passed

Answer 1

同学你好，首先make used of的of是介词，所以后面应该接名词，即doing ，希望能帮到你本回答被提问者采纳

Answer 2

应该加doing,因为 of是一个介词，介词后应该接动名词，所以应该加doing.希望能够给你一点帮助。

Answer 3

.

Answer 4

doing