The answer correct answer is C
I believe that the answer to this question in D. I hope that help.
Answer:
1. He was planting trees in the garden at that moment.
2. They did not often go to the zoo.
3. Mary had just come there with her sister.
4. The boys did not learn English yet.
5. Did you do your homework when he came?
6. Tom will post those letters soon.
7. We will not buy anything tomorrow.
8. Did Peter always help his father?
9. I was cleaning my bicycle at that time.
Explanation:
The answer is A, “Sam’s” is the correct spelling
Answer:
be done to protect people walking on sidewalks
