After about three               （星期）holiday, we came back to school.
My mother has so many           (家务)to do every day.
She is looking forward to            (收到) letters from her friends.
You should do your homework more_______(仔细地).
It makes me feel          (自豪的) when I see the national flag of China.
Computer is one of the greatest                (发明) . I can’t imagine life without it.