1. (他把自己奉献于社区工作)___________________ and is passionate about what he is doing.
2. the fifth generation computers, with artificial intelligence,__________________(正在研制)and perfected now.
3. although punctual himself, the professor was quite used______________(习惯了学生迟到)his lecture.
4. i’d rather________________(你别发表任何意见)on the issue for the time being.
5. don’t you know it’s the first time _____________________(他参加这种会议).
参考答案：
1. he devoted himself to the community
2. are being developed
3. to students’ being late for
4. you didn’t make any comment
he has attended this kind of meeting