Unclear Subject Practice AK

Are the dependent clause introductions to these sentences written correctly?  Is the subject clear?  If not, edit the sentence.

1. Yes. Klause is the subject of both clauses.
2. No. The picnic area can't eat. Try: When we were eating lunch, the picnic area got really windy and cold.
3. No.  The project could not get sick.  Try: Though James was sick, his project turned out to be the best one in the room.
4. Yes.
5. No. The office cannot be early. Try: When students are early, the office allows them to play on the playground.
6. Yes. The kids are the subject of both clauses.
7. No. The babies are not old! Try: Though the grandparents were old, the babies made them feel young again.
8. Yes.
9. No. The dictionary is not what is not understanding. Try: Because she understands nothing, Marnie keeps the French-English dictionary nearby.
10. No. Corpses cannot be hopeful. Try: Hopeful, the medical examiner noted that the corpse had some unusual identifying marks.