Heads from different countries gathered in Amsterdam and President Xi jinping _____ a speech on nuclear safety.

(2013·山东淄博二模)Maria ________ the interviewers with her knowledge and experience, and as a result she was offered the job.

---Have you ________?---No. I had the wrong number. 

After he retired from office, Rogers_______ painting for a while, but soon lost interest.

With economy developing at great speed, our city has _____ quite a few changes in recent years.