-He __________ his mother do the housework at the age of eight. -We should help our parents with the housework. I did it when I __________ six. A. helped, was B. helps, was C. helped, am D helped, am
___ 8.8 magnitude(震级) earthquake hit Japan on March 11.2011. It caused a huge
tsunami(海啸). _____ number of people lost their lives in the natural disasters.