Some of the drivers were ______ by the police becauseof their good behavior in the traffic accident.

Whenever Mary hears something interesting, she can’t keep it to and wants to share it with me.

It is well known to all that water, ______enough, can change into ice quickly．

Do you have any plans for this weekend— I am not sure. I ________ go to visit my grandmother.

Everyone should learn something about first aid, because every second in an emergency.