When I as well as my cousins __________ as a volunteer in Beijing, I saw the Water Cube twice.

Yesterday I went to see him, _________ that he had gone abroad two days before.

Miss Li, who ________ as a secretary for 5 years in our company, is now a sales manager in RT-Mart.

Everybody in the village likes Jack because he is good at ______ and telling jokes.

By _____ local doctors and nurses, We hope _____ more patients.