arriving at my hotel, i found to my surprise that my purchases had preceded me home, my instructions to send them having been executed with great promptness.
1. 밑줄 친 문장은 분사구문이죠?
2. having앞에 의미상의 주어를 써준건가요?

alive, the elephant was worth at least a hundred pounds; dead, he would only be worth the value of his tusks, five pounds, possibly. but i had got to act quickly; i had to shoot him.
1. 밑줄 친 두 단어 앞에는 being이 생략된건가요?

감사합니다.
감기조심하세요~