T́m chủ ngữ, động từ và túc từ trong các câu sau:
1. The central library, which was built in 1970, is currently under renovation
2. Ms. Leona, who is in charge of the accounting department, will be promoted
3. According to a recent survey, interest rates are expected to rise slightly
4. The project has been a failure though we invested a lot of money in it
5. All financial reports must be sent to the accounting department