Any numerical description of the development of the human population cannot avoid ______, simply because there has never been a census of all the people in the world.

(单选题)47.（ ） (单选题)46.（ ） (单选题)—How many people lost their lives in the big traffic acciden (单选题)—Lisa, I know you’re confident about getting that job but re (单选题)Neither Jack nor I ______ to Hong Kong, so we are planning a (单选题)The trip to Hong Kong was ______ and we felt ______. (单选题)Listen! How ______ the music sounds! (单选题)I spend 2 hours doing my homework and I need ______ to finis (单选题)It is said that if you blow out the candies and make a wish (单选题)The boy spent the whole day ______ a book ______ THE WORLD M