Mandela, having devoted all his life to the freedom of South African Blacks, is a real fighter for us to_________.
In some countries, many students participate in various programs, _______ they learn about the sense of responsibility by volunteering their services.
The hotel was terrible, and not at all what we _______ to expect in the advertisement.
Mom told him he was forbidden to watch TV for a month. _______, he stormed out of the room.
— Can I go now, sir? — If you _______ leave, do it quietly.
I wanted to _______ them the trouble of buying me a present. So I didn’t tell them about my birthday party.