On the annual International Volunteers Day, the world ______ the work of millions of people who give their time to help others.
He changed so much that I didn’t _______ him at first sight.
Do you know when ________?
I don’t think she is a nice woman;I’m ______ her empty talk.
____ you promise to buy her a gift, you can’t break it in any case.
He realized she was crying ________ what he had sad.