计划生育的目的是控制________________和提高________________。
人口数量，人口素质
具体要求是晚婚、晚育、少生、优生。
用括号中所给单词的正确形式填空。
小题1:She always does her homework ________ (care), and we all like working with her.
小题2:Five days ________ (late), he came to my home again and took away that computer.
小题3: Tom ___________ (begin) to learn Chinese last year.
小题4:Walk along the path, and you ________ (see) a shop on your left.
小题5: I am looking forward to ________ (meet) you in Beijing.
环形面积就是两个同心圆面积的______．
