請各位大叔大姐們幫個忙,幫我一下以下的英語問題,

題目：

請各位大叔大姐們幫個忙,幫我一下以下的英語問題,
1、There is a tall building in the center of the city(改爲將來時）
2、I ofen do some housework after supper(對劃線部分提問,劃線部分是I)
3、Mr White lives in Washington(對劃線部分提問,劃線部分是in washington)
4、Jane is doing her homework(對劃線部分提問,劃線部分是doing her homewwork）
5、Her skirt is yellow(對劃線部分提問,劃線部分是yellow)
6、The hill is about 300 meters high(對劃線部分提問,劃線部分是300 meters high)
7、He wants to go swimming(改爲一般疑問句）
8、Both his father and mother are doctors(改爲否定句）
9、He piays basketball twice a week((對劃線部分提問,劃線部分是 twice a week)
10、There is something strange in this house(改爲附加疑問句）

解答：

1.There will be a tall building in the center of the city.
2.Who often does some housework after supper?
3.Where does Mr.White live?
4.What is Jane doing?
5.What colour is her skirt?
6.How high is the hill?
7.Does he want to go swimming?
8.Both his father and mother aren't doctors.
9.How often does he play baketball?
10.There is something strange in this hjouse,isn't there?