_____LiJun is only 10, _____ she has taken care of her sick father for three years.

下列图形不是中心对称图形的是（   ）.

完型填空。

    My name 1Tim. I'm 16 years old. I'm a junior high school student. Tomorrow is the weekend. We have no classes. My parents2 going to work, but we are going to be very busy tomorrow. My mother is going to buy a sweater 3my grandmother. My father is going to visit my aunt and uncle. I'm going to4computer games with my cousin. Tomorrow evening we are going to have 5big dinner. After dinner we are going to the cinema to see a film by car. I think we are going to have a nice weekend.

找规律,写一写。

89, ____ , ____ ,83 , 81 , ____