_____ people have died of AIDS (艾滋病) since 1981.
Lu Xun is known not only a great writer but also a great thinker.
— Will you go to plant trees in the mountains? — _____! I do so every Tree-Planting Day.
My favourite photo ______ by my mother when I was two years old.
_____ works entered the writing competition this year than last year.
The famous singer has agreed ______ the prizes at the prize giving ceremony.