The professor devoted all his life __________ the treatment of AIDS

The decision _____ giving lessons during vacations and weekends should be banned is ____ the Education Department of Anhui Province has made.

I decided to pay a visit to my former teacher as soon as I ____.

Members of the media _____to cover Royal events orstories should make themselves familiar with the guidance provided in thissection

. He _____ the place where he had beenbitten by an insect.