1.At first Sally was f of planes,but two years later,flying to other countries on business is her main business.
答案:frightened
2.The captain a to tell us more about the accident.
答案:apologised
3.I have a that one of my staff will meet you at the airport.
答案:arranged
4.My mother felt pleased with herself because she had p my father to give up smoking.
答案:persuaded
5.The basic causes are u ,although certain conditions that may lead to cancer have been discovered.
答案:unknown
