The International Day against Drugs, aimed at warning people to keep away from drugs, ______ on June 26th every year.
The professor spoke very clearly to make his speech ___.
Her ___ look suggested that she was completely ___.
“Bill, keep the things ___ here secret,”said the manager after meeting.
It is one of the funniest things ___ on the Internet so far this year.
According to the driver’s explaination, it was not his carelessness but the bad road conditions that ___ for the accident.