Answer:
1) house
2) Mark and Joseph are subjects, house is DO
3) uncle, picnic, family,
4) cameras, stores
5) The puppy's collar was bright red, and it said Jenny's dog on the tag.
6) Mr. Roberts' class read JK Rowling's Harry Potter and the Chamber of Secrets at the end of the day.
7) While the class was watching the children's horses at the farmer's show, the noticed that the horse's stalls were perfectly clean.
Explanation: