1. Cleaned
2. Studied
3. Have been
4. Taught
5. Have, been
6. Did, eat
7. Did not finish
8. Prepared
9. Didn’t
10. Have, met
The answer is C, they present the problem in the first part of the sentence (rather than...) and provide a solution in the second half.
Base on my research, the reason why the Expository writing include more than just a fact, its because, it also need and evidence that could support the fact. I hope you are satisfied with my answer and feel free to ask for more if you have questions and further clarifications
I believe D would be the best fit answer