We’re expecting Jerry because he’s our _________ visitor who comes here for holiday every summer.
The research is so designed that once ____ nothing can be done to change it.
______ in thought, he almost ran into the car in front of him.
Not only ____ the jewelry she ____ been sold for her son's gambling debts but also her house.
The man whose songs we are fond of ____ in our city next week.
The person we talked about ____ our school last week.