. Which ______ did you enter for at the sports meet?
The company is atarting a new advertising campaign to ______new custumers to its stores.
Before the war broke out, many people ______in safe places possessions they could not take with them.
I will never forget the day _______ I came to my university and the day ______ I spent in a new city.
Tony showed me his new cell phone, _______ was small but it could change colors in different weather.
We have heard of many cases _______ some citizens ,especially some famous people, have suffered because personal information had been leaked.