1) A new technology for studying the radioactive background of the environment was developed by the research institute.
2) Did you send for me , mrs Rigbi?
3) Could you sent me a copy of the contract?
4) English language courses at our university are held at a very high level.
5) He must come to dinner on time.
6)Yiu do not say , he resigned?
7) She is probably in the research center.
8) An important telephone conversation is probably over.
9)Are you invited to a corporate party dedicated to the founding day of the company?
10) Can you send me a report by e-mail?
