1. europeans might never have found the new world if it had not been for black pepper.
이 문장에서요,, 연두색 부분을 if it were not for 로 표현 할 수 없나요??

2. marco polo introduced pasta to europe. 을 수동태로 바꿀때
- pasta was intrduced to europe by marco polo. 와
- pasta was introduced by marco polo in europe. 둘 다 가능한가요??