You should not mention it in the beginning, or it will ________ the surprising ending.

Theprofessor devoted all his life ____the treatment of AIDS

You know what Wang Wei wants tobe another Yao Ming and play in NBA– Are you kidding He will never _____ asuper star

There _____ ten desks in this room butthere aren’t _____ in that room.

Would you like ________ for a walk after supper