—What can we do to________ bird flu from spreading?—Try not to buy or eat chickens that have not been checked.A. prevent B. cause C. discover
My mother often tells me __ to MP3 while I am doing my homework.
I think this room is ____ than yours.
—What is your favourite ____, Tom? —I like English best.
My father was born in Beijing ____1965.
This is my sister. ____ name is Lucy.