__________ earthquake happened in Ya’an Sichuan, on the morning of April 20.
--Ann has finished her homework, hasn’t she?--Yes. She ______it an hour ago.
.I heard a new song on the radio.I ______high and low in the music store, but I can’t find the song.
Get up early,______you’ll be late for school.
Could you tell me how long _____the football club?
--________ How long haven’t you cleaned your room?--Two months at least--No wonder(难怪)it’s so untidy.