Are you clear _____ what has been taught in this class? That is: Is everything that has been taught in this class clear _____ you?
A lot of tents, drinking water and food ______ to the homeless earthquake survivors in the past several weeks.
—I’ve read another book this week. —Well, maybe _______ is not how much you read but what you read that is important.
I like this jacket better than that one, but it costs almost three times _______.
The lazy waiter ______ to his boss that he had ______ the table.
Though having been told to pay attention to his behavior, he performed bad ____ at the party.