回答数学题时,麻烦写过程,还有,请标上序号.

回答数学题时,麻烦写过程,还有,请标上序号.
（数学题）在做浮力实验时,小明用一根细线将一正方体铁块拴住,完全浸入盛满水的圆柱形烧杯中,并用一量筒量的被铁块排开的水的体积为40.5cm²,小明又将铁块从烧杯中提出,量得烧杯中的水位下降了0.62cm,求烧杯内部的底面半径和铁块的棱长各是多少（结果精确到0.1cm）?
1.The boy looks shy,but in fact he is very____.（首字母填空）
2.给你你的全家福照片.（补全句子）
_____ _____your family photos.
3.连词成句
①me,to,my,junk,told,eat,doctor,food,not.
______________________________
②food,helps,well,good,me,study,to.
_______________________________
3.根据对话内容,在横线处填入适当的内容,补全对话（每空次数不限）
A:Oh,your computer looks cool.Do you like surfing the 1._____?
B:Yes.I like to2._____ my friends on the computer.
A:3._____ do you talk with them?
B:I talk with them every day.
A:Then 4._____ hours do you do that every day?
B:Two.What about you?
A:I 5.______ do that.I spend more time on my studies.
B:You're really a good girl.
注：这些题都是初二上学期的题目!
英语题的第一题的首字母是a