It was not until Tom took off his dark glasses that I _____ him.

 Lacking rain, many river in Yunnan province have ______ recently.

 After three hours' discussion, the meeting finally ________ without any agreement on the issue.

—How long have you been in this office?—Just a few minutes.My cousins ________ here together with me.

 London was ______ to hold the 2012 Olympic Games.