He ___articles for our wall-newspaper these three years, and he ___about forty articles.
Her work changed the way _______ people think about chimps.
The Voice of America began during the World War Ⅱ, when Germany was broadcasting a radio program to get international ______.
The officers narrowly escaped ___________ in the hot battle.
The children do not know how to _______ themselves decently at the party.
The teacher said there were twelve _____ who had failed in the exam.