句型转换。 1. He had an accident yesterday. He was unhurt. (用but连接) 2. I felt tired. I decided to have a good test.(用so连接) 3. Please tell me what I should do.(改为简单句) Please tell me________ ________ ________. 4. He failed many times. He gave up.(用after改为简单句) 5. Now he feels confident.(改为否定句) 6. He arrived early. He wanted to see me.(用so as to连接) 7. He always gave me some good advice.(改为一般疑问句) 8. Li Yundi does well in playing the piano.(改为否定句) 9. These words are hard to spell.(同义句) __________ is