用括号里的词的适当形式填空。 1. He had an accident,_______( luck) ,he wasn't badly hurt. 2.He had some problems_______( get) along with others. 3. My friend told me he_____( arrive) in Beijing the next day. 4. I’m ______to the _______news. (disappoint) 5. There are many_______( different ) between them..